{"id":205821,"date":"2025-06-12T10:36:03","date_gmt":"2025-06-12T02:36:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205821\/"},"modified":"2025-06-12T10:36:03","modified_gmt":"2025-06-12T02:36:03","slug":"go-%e4%b8%ad%e7%9a%84%e5%88%87%e7%89%87%ef%bc%9a%e5%8f%98%e5%a4%a7%e6%88%96%e5%9b%9e%e5%ae%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205821\/","title":{"rendered":"Go \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6"},"content":{"rendered":"<p>GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01,\u65b0\u5f00\u53d1\u4eba\u5458\u901a\u5e38\u8ba4\u4e3a\u5207\u7247\u975e\u5e38\u5bb9\u6613\u83b7\u5f97\uff0c\u53ea\u662f\u4e00\u4e2a\u4e0e\u5e38\u89c4\u6570\u7ec4\u76f8\u6bd4\u53ef\u4ee5\u6539\u53d8\u5927\u5c0f\u7684\u52a8\u6001\u6570\u7ec4\u3002\u4f46\u8001\u5b9e\u8bf4\uff0c\u5f53\u8c08\u5230\u5b83\u4eec\u5982\u4f55\u6539\u53d8\u5927\u5c0f\u65f6\uff0c\u5b83\u6bd4\u770b\u8d77\u6765\u66f4\u68d8\u624b\u3002,\u6240\u4ee5\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5207\u7247\u53d8\u91cf a\uff0c\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf b\u3002\u73b0\u5728\uff0ca \u548c b \u90fd\u6307\u5411\u540c\u4e00\u4e2a\u5e95\u5c42\u6570\u7ec4\u3002\u5982\u679c\u60a8\u5bf9\u5207\u7247 a \u8fdb\u884c\u4efb\u4f55\u66f4\u6539\uff0c\u60a8\u4e5f\u4f1a\u5728 b \u4e2d\u770b\u5230\u8fd9\u4e9b\u66f4\u6539\u3002,\u4f46\u60c5\u51b5\u5e76\u975e\u603b\u662f\u5982\u6b64\u3002,a \u548c b \u4e4b\u95f4\u7684\u8054\u7cfb\u5e76\u4e0d\u662f\u90a3\u4e48\u7262\u56fa\uff0c\u5728 go \u4e2d\uff0c\u4f60\u4e0d\u80fd\u6307\u671b a \u4e2d\u51fa\u73b0\u7684\u6bcf\u4e00\u4e2a\u53d8\u5316\u90fd\u4f1a\u51fa\u73b0\u5728 b \u4e2d\u3002,\u7ecf\u9a8c\u4e30\u5bcc\u7684 go \u5f00\u53d1\u4eba\u5458\u5c06\u5207\u7247\u89c6\u4e3a\u6307\u5411\u6570\u7ec4\u7684\u6307\u9488\uff0c\u4f46\u6709\u4e00\u4e2a\u95ee\u9898\uff1a\u8be5\u6307\u9488\u53ef\u80fd\u4f1a\u5728\u6ca1\u6709\u901a\u77e5\u7684\u60c5\u51b5\u4e0b\u53d1\u751f\u66f4\u6539\uff0c\u5982\u679c\u60a8\u4e0d\u5b8c\u5168\u7406\u89e3\u5207\u7247\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u8fd9\u4f1a\u4f7f\u5207\u7247\u53d8\u5f97\u68d8\u624b\u3002\u5728\u672c\u6b21\u8ba8\u8bba\u4e2d\uff0c\u6211\u4eec\u5c06\u6db5\u76d6\u4ece\u57fa\u7840\u77e5\u8bc6\u5230\u5207\u7247\u5982\u4f55\u589e\u957f\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u5728\u5185\u5b58\u4e2d\u5206\u914d\u7684\u6240\u6709\u5185\u5bb9\u3002,\u4e00\u65e6\u58f0\u660e\u4e86\u5177\u6709\u7279\u5b9a\u957f\u5ea6\u7684\u6570\u7ec4\uff0c\u8be5\u957f\u5ea6\u5c31\u4f1a\u4f5c\u4e3a\u5176\u7c7b\u578b\u7684\u4e00\u90e8\u5206\u201c\u9501\u5b9a\u201d\u3002\u4f8b\u5982\uff0c[1024]byte \u7684\u6570\u7ec4\u4e0e [512]byte \u7684\u6570\u7ec4\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u7c7b\u578b\u3002,\u73b0\u5728\uff0c\u5207\u7247\u6bd4\u6570\u7ec4\u66f4\u7075\u6d3b\uff0c\u56e0\u4e3a\u5b83\u4eec\u57fa\u672c\u4e0a\u662f\u6570\u7ec4\u9876\u90e8\u7684\u4e00\u5c42\u3002\u5b83\u4eec\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u5927\u5c0f\uff0c\u5e76\u4e14\u60a8\u53ef\u4ee5\u4f7f\u7528append()\u6dfb\u52a0\u66f4\u591a\u5143\u7d20\u3002,\u521b\u5efa\u5207\u7247\u7684\u65b9\u6cd5\u6709\u5f88\u591a\u79cd\uff1a,\u6700\u540e\u4e00\u4e2a\u5e76\u4e0d\u5e38\u89c1\uff0c\u4f46\u5b83\u662f\u5408\u6cd5\u7684\u8bed\u6cd5\u3002,\u4e0e\u6570\u7ec4\u4e0d\u540c\uff0c\u6570\u7ec4\u4e2d\u7684 len \u548c cap \u662f\u5e38\u91cf\u5e76\u4e14\u59cb\u7ec8\u76f8\u7b49\uff0c\u800c\u5207\u7247\u5219\u4e0d\u540c\u3002\u5728\u6570\u7ec4\u4e2d\uff0cgo \u7f16\u8bd1\u5668\u63d0\u524d\u77e5\u9053\u957f\u5ea6\u548c\u5bb9\u91cf\uff0c\u751a\u81f3\u5c06\u5176\u70d8\u7119\u5230 go \u6c47\u7f16\u4ee3\u7801\u4e2d\u3002,\u4f46\u662f\u5bf9\u4e8e\u5207\u7247\uff0clen \u548c cap \u662f\u52a8\u6001\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u66f4\u6539\u3002,\u5207\u7247\u5b9e\u9645\u4e0a\u53ea\u662f\u63cf\u8ff0\u5e95\u5c42\u6570\u7ec4\u201c\u5207\u7247\u201d\u7684\u4e00\u79cd\u65b9\u5f0f\u3002,\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6709\u4e00\u4e2a\u50cf [1:3] \u8fd9\u6837\u7684\u5207\u7247\uff0c\u5b83\u4ece\u7d22\u5f15 1 \u5f00\u59cb\uff0c\u5728\u7d22\u5f15 3 \u4e4b\u524d\u7ed3\u675f\uff0c\u56e0\u6b64\u957f\u5ea6\u4e3a 3 &#8211; 1 = 2\u3002,\u4e0a\u9762\u7684\u60c5\u51b5\u53ef\u4ee5\u7528\u4e0b\u56fe\u6765\u8868\u793a\u3002,\u5207\u7247\u7684\u957f\u5ea6\u5c31\u662f\u5176\u4e2d\u6709\u591a\u5c11\u4e2a\u5143\u7d20\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u6709 2 \u4e2a\u5143\u7d20 [1, 2]\u3002\u4e0a\u9650\u57fa\u672c\u4e0a\u662f\u4ece\u5207\u7247\u5f00\u5934\u5230\u5e95\u5c42\u6570\u7ec4\u7ed3\u5c3e\u7684\u5143\u7d20\u6570\u91cf\u3002,<br \/>\n<em>\u4e0a\u9762\u5bf9\u5bb9\u91cf\u7684\u5b9a\u4e49\u6709\u70b9\u4e0d\u51c6\u786e\uff0c\u6211\u4eec\u4f1a\u5728\u589e\u957f\u90e8\u5206\u8ba8\u8bba\u5b83\u3002<\/em>,\u7531\u4e8e\u5207\u7247\u6307\u5411\u5e95\u5c42\u6570\u7ec4\uff0c\u56e0\u6b64\u5bf9\u5207\u7247\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u4e5f\u4f1a\u66f4\u6539\u5e95\u5c42\u6570\u7ec4\u3002,\u8ba9\u6211\u5411\u60a8\u5c55\u793a 3 \u79cd\u901a\u8fc7\u67e5\u770b\u5176\u5185\u90e8\u8868\u793a\u6765\u67e5\u627e\u5207\u7247\u5f00\u5934\u7684\u65b9\u6cd5\u3002,\u60a8\u53ef\u4ee5\u4f7f\u7528 println \u6765\u83b7\u53d6\u5207\u7247\u7684\u539f\u59cb\u503c\uff0c\u800c\u4e0d\u662f\u4f7f\u7528 fmt.println\uff1a,\u4ece\u8be5\u8f93\u51fa\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u5207\u7247\u5e95\u5c42\u6570\u7ec4\u7684\u5730\u5740\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u5730\u5740\u4e0d\u540c\uff0c\u8fd9\u5f88\u5947\u602a\uff0c\u5bf9\u5427\uff1f,\u8ba9\u6211\u4eec\u5728\u4e0b\u56fe\u4e2d\u5f62\u8c61\u5316\u8fd9\u4e00\u70b9\u3002,\u5982\u679c\u60a8\u5df2\u7ecf\u67e5\u770b\u4e86\u4e4b\u524d\u6709\u5173\u6570\u7ec4\u7684\u6587\u7ae0\uff0c\u60a8\u5c06\u4e86\u89e3\u5143\u7d20\u5982\u4f55\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u771f\u6b63\u53d1\u751f\u7684\u662f\u5207\u7247\u76f4\u63a5\u6307\u5411\u6570\u7ec4[1]\u3002,\u8bc1\u660e\u8fd9\u4e00\u70b9\u7684\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 unsafe.slicedata \u83b7\u53d6\u6307\u5411\u5207\u7247\u5e95\u5c42\u6570\u7ec4\u7684\u6307\u9488\uff1a,\u5f53\u60a8\u5c06\u5207\u7247\u4f20\u9012\u7ed9 unsafe.slicedata \u65f6\uff0c\u5b83\u4f1a\u8fdb\u884c\u4e00\u4e9b\u68c0\u67e5\u4ee5\u786e\u5b9a\u8981\u8fd4\u56de\u7684\u5185\u5bb9\uff1a,\u60a8\u53ef\u4ee5\u5728 go \u6587\u6863\u4e2d\u627e\u5230\u6240\u6709\u8fd9\u4e9b\u5185\u5bb9\u3002,\u6709\u70b9\u65ad\u7ae0\u53d6\u4e49\uff0c\u4e0d\u8fc7\u6ee1\u8db3\u4e00\u4e0b\u6211\u4eec\u7684\u597d\u5947\u5fc3\u5427:),\u5728 go \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5927\u5c0f\u4e3a\u96f6\u7684\u7c7b\u578b\uff0c\u4f8b\u5982 struct{} \u6216 [0]int\u3002\u5f53 go \u8fd0\u884c\u65f6\u4e3a\u8fd9\u4e9b\u7c7b\u578b\u5206\u914d\u5185\u5b58\u65f6\uff0c\u5b83\u4e0d\u4f1a\u4e3a\u6bcf\u4e2a\u7c7b\u578b\u5206\u914d\u552f\u4e00\u7684\u5185\u5b58\u5730\u5740\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u540d\u4e3a zerobase \u7684\u7279\u6b8a\u53d8\u91cf\u7684\u5730\u5740\u3002,\u60a8\u53ef\u80fd\u5df2\u7ecf\u660e\u767d\u4e86\uff0c\u5bf9\u5427\uff1f,\u6211\u4eec\u524d\u9762\u63d0\u5230\u7684\u201c\u672a\u6307\u5b9a\u201d\u5185\u5b58\u5c31\u662f\u8fd9\u4e2a\u96f6\u57fa\u5730\u5740\u3002,\u5f88\u9177\uff0c\u5bf9\u5427\uff1f\u5c31\u50cf\u6211\u4eec\u521a\u521a\u63ed\u5f00\u4e86 go \u6240\u9690\u85cf\u7684\u4e00\u4e2a\u5c0f\u79d8\u5bc6\u3002,\u8ba9\u6211\u4eec\u7ee7\u7eed\u7b2c\u4e09\u6761\u8def\u3002,\u5728\u5e55\u540e\uff0c\u5207\u7247\u53ea\u662f\u4e00\u4e2a\u5177\u6709\u4e09\u4e2a\u5b57\u6bb5\u7684\u7ed3\u6784\uff1aarray &#8211; \u6307\u5411\u5e95\u5c42\u6570\u7ec4\u7684\u6307\u9488\uff0clen &#8211; \u5207\u7247\u7684\u957f\u5ea6\uff0ccap &#8211; \u5207\u7247\u7684\u5bb9\u91cf\u3002,\u8fd9\u4e5f\u662f\u6211\u4eec\u8ba1\u7b97\u5207\u7247\u8d77\u70b9\u7684\u7b2c\u4e09\u79cd\u65b9\u6cd5\u7684\u8bbe\u7f6e\u3002\u5f53\u6211\u4eec\u8fd9\u6837\u505a\u65f6\uff0c\u6211\u4eec\u5c06\u8bc1\u660e\u4e0a\u9762\u7684\u7ed3\u6784\u786e\u5b9e\u662f\u5207\u7247\u5185\u90e8\u5de5\u4f5c\u7684\u65b9\u5f0f\u3002,\u8f93\u51fa\u6b63\u662f\u6211\u4eec\u6240\u671f\u671b\u7684\uff0c\u6211\u4eec\u901a\u5e38\u5c06\u8fd9\u4e2a\u5185\u90e8\u7ed3\u6784\u79f0\u4e3a\u5207\u7247\u5934\uff08sliceheader\uff09\u3002 reflect\u5305\u4e2d\u8fd8\u6709\u4e00\u4e2areflect.sliceheader\uff0c\u4f46\u5b83\u5df2\u88ab\u5f03\u7528\u3002,\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u638c\u63e1\u4e86\u5207\u7247\u7684\u7ed3\u6784\uff0c\u662f\u65f6\u5019\u6df1\u5165\u4e86\u89e3\u5b83\u4eec\u7684\u5b9e\u9645\u884c\u4e3a\u4e86\u3002,\u4e4b\u524d\uff0c\u6211\u63d0\u5230<br \/>\n<em>\u201c\u4e0a\u9650\u57fa\u672c\u4e0a\u662f\u57fa\u7840\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4ece\u5207\u7247\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u5230\u8be5\u6570\u7ec4\u7684\u672b\u5c3e\u3002\u201d<\/em>\u8fd9\u5e76\u4e0d\u5b8c\u5168\u51c6\u786e\uff0c\u53ea\u662f\u6b63\u786e\u7684\u5728\u90a3\u4e2a\u7279\u5b9a\u7684\u4f8b\u5b50\u4e2d\u3002,\u4f8b\u5982\uff0c\u5f53\u60a8\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u521b\u5efa\u65b0\u5207\u7247\u65f6\uff0c\u6709\u4e00\u4e2a\u9009\u9879\u53ef\u4ee5\u6307\u5b9a\u5207\u7247\u7684\u5bb9\u91cf\uff1a,\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u5207\u7247\u64cd\u4f5c\u4e2d\u4e0d\u6307\u5b9a\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u5219\u4ece\u5207\u7247\u540e\u7684\u5207\u7247\u6216\u5207\u7247\u6570\u7ec4\u7684\u957f\u5ea6\u4e2d\u83b7\u53d6\u5bb9\u91cf\u3002,\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5207\u7247\u7684\u5bb9\u91cf\u8bbe\u7f6e\u4e3a\u539f\u59cb\u6570\u7ec4\u7684\u7d22\u5f15 4\uff08\u4e0d\u5305\u542b\u7d22\u5f15\uff0c\u5982\u957f\u5ea6\uff09\u3002,\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u91cd\u65b0\u5b9a\u4e49\u5207\u7247\u5bb9\u91cf\u7684\u771f\u6b63\u542b\u4e49\u3002,<br \/>\n<em>\u201c\u5207\u7247\u7684\u5bb9\u91cf\u662f\u5b83\u5728\u9700\u8981\u589e\u957f\u4e4b\u524d\u53ef\u4ee5\u5bb9\u7eb3\u7684\u6700\u5927\u5143\u7d20\u6570\u91cf\u3002\u201d<\/em>,\u5982\u679c\u4f60\u4e0d\u65ad\u5411\u5207\u7247\u6dfb\u52a0\u5143\u7d20\u5e76\u4e14\u5b83\u8d85\u51fa\u4e86\u5176\u5f53\u524d\u5bb9\u91cf\uff0cgo \u5c06\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u66f4\u5927\u7684\u6570\u7ec4\uff0c\u590d\u5236\u5143\u7d20\uff0c\u5e76\u5c06\u8be5\u65b0\u6570\u7ec4\u7528\u4f5c\u5207\u7247\u7684\u57fa\u7840\u6570\u7ec4\u3002,\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,\u5982\u679c\u5207\u7247\u4e3a\u96f6\uff0c\u5219\u51fd\u6570\u4ec5\u8fd4\u56de nil\u3002,\u5982\u679c\u5207\u7247\u7684\u5bb9\u91cf\u5927\u4e8e 0\uff0c\u5219\u8be5\u51fd\u6570\u8fd4\u56de\u6307\u5411\u5207\u7247\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u6307\u9488\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a array[1]\uff09\u3002,\u5982\u679c\u5207\u7247\u4e0d\u4e3a\u96f6\u4f46\u5bb9\u91cf\u4e3a\u96f6\uff08\u7a7a\u5207\u7247\uff09\uff0c\u5219\u8be5\u51fd\u6570\u4f1a\u7ed9\u60a8\u4e00\u4e2a\u6307\u9488\uff0c\u4f46\u5b83\u6307\u5411\u201c\u672a\u6307\u5b9a\u7684\u5185\u5b58\u5730\u5740\u201d\u3002,GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>Go \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6<\/span><\/p>\n<h1>Go \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6<\/h1>\n<p><span>\u6765\u6e90\uff1adev.to<\/span><br \/>\n<span>2024-10-27 14:03:53<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>GOLANG\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<blockquote>\n<p>\u8fd9\u662f\u5e16\u5b50\u7684\u6458\u5f55\uff1b\u5b8c\u6574\u7684\u5e16\u5b50\u53ef\u4ee5\u5728\u8fd9\u91cc\u627e\u5230\uff1ahttps:\/\/victoriametrics.com\/blog\/go-slice\/<\/p>\n<\/blockquote>\n<p>\u65b0\u5f00\u53d1\u4eba\u5458\u901a\u5e38\u8ba4\u4e3a\u5207\u7247\u975e\u5e38\u5bb9\u6613\u83b7\u5f97\uff0c\u53ea\u662f\u4e00\u4e2a\u4e0e\u5e38\u89c4\u6570\u7ec4\u76f8\u6bd4\u53ef\u4ee5\u6539\u53d8\u5927\u5c0f\u7684\u52a8\u6001\u6570\u7ec4\u3002\u4f46\u8001\u5b9e\u8bf4\uff0c\u5f53\u8c08\u5230\u5b83\u4eec\u5982\u4f55\u6539\u53d8\u5927\u5c0f\u65f6\uff0c\u5b83\u6bd4\u770b\u8d77\u6765\u66f4\u68d8\u624b\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5207\u7247\u53d8\u91cf a\uff0c\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf b\u3002\u73b0\u5728\uff0ca \u548c b \u90fd\u6307\u5411\u540c\u4e00\u4e2a\u5e95\u5c42\u6570\u7ec4\u3002\u5982\u679c\u60a8\u5bf9\u5207\u7247 a \u8fdb\u884c\u4efb\u4f55\u66f4\u6539\uff0c\u60a8\u4e5f\u4f1a\u5728 b \u4e2d\u770b\u5230\u8fd9\u4e9b\u66f4\u6539\u3002<\/p>\n<p>\u4f46\u60c5\u51b5\u5e76\u975e\u603b\u662f\u5982\u6b64\u3002<\/p>\n<p>a \u548c b \u4e4b\u95f4\u7684\u8054\u7cfb\u5e76\u4e0d\u662f\u90a3\u4e48\u7262\u56fa\uff0c\u5728 go \u4e2d\uff0c\u4f60\u4e0d\u80fd\u6307\u671b a \u4e2d\u51fa\u73b0\u7684\u6bcf\u4e00\u4e2a\u53d8\u5316\u90fd\u4f1a\u51fa\u73b0\u5728 b \u4e2d\u3002<\/p>\n<p>\u7ecf\u9a8c\u4e30\u5bcc\u7684 go \u5f00\u53d1\u4eba\u5458\u5c06\u5207\u7247\u89c6\u4e3a\u6307\u5411\u6570\u7ec4\u7684\u6307\u9488\uff0c\u4f46\u6709\u4e00\u4e2a\u95ee\u9898\uff1a\u8be5\u6307\u9488\u53ef\u80fd\u4f1a\u5728\u6ca1\u6709\u901a\u77e5\u7684\u60c5\u51b5\u4e0b\u53d1\u751f\u66f4\u6539\uff0c\u5982\u679c\u60a8\u4e0d\u5b8c\u5168\u7406\u89e3\u5207\u7247\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u8fd9\u4f1a\u4f7f\u5207\u7247\u53d8\u5f97\u68d8\u624b\u3002\u5728\u672c\u6b21\u8ba8\u8bba\u4e2d\uff0c\u6211\u4eec\u5c06\u6db5\u76d6\u4ece\u57fa\u7840\u77e5\u8bc6\u5230\u5207\u7247\u5982\u4f55\u589e\u957f\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u5728\u5185\u5b58\u4e2d\u5206\u914d\u7684\u6240\u6709\u5185\u5bb9\u3002<\/p>\n<blockquote>\n<p>\u5728\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u7ec6\u8282\u4e4b\u524d\uff0c\u6211\u5efa\u8bae\u5148\u68c0\u67e5\u4e00\u4e0b\u6570\u7ec4\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u3002<\/p>\n<\/blockquote>\n<h2> \u5207\u7247\u7684\u7ed3\u6784\u5982\u4f55 <\/h2>\n<p>\u4e00\u65e6\u58f0\u660e\u4e86\u5177\u6709\u7279\u5b9a\u957f\u5ea6\u7684\u6570\u7ec4\uff0c\u8be5\u957f\u5ea6\u5c31\u4f1a\u4f5c\u4e3a\u5176\u7c7b\u578b\u7684\u4e00\u90e8\u5206\u201c\u9501\u5b9a\u201d\u3002\u4f8b\u5982\uff0c[1024]byte \u7684\u6570\u7ec4\u4e0e [512]byte \u7684\u6570\u7ec4\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u7c7b\u578b\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5207\u7247\u6bd4\u6570\u7ec4\u66f4\u7075\u6d3b\uff0c\u56e0\u4e3a\u5b83\u4eec\u57fa\u672c\u4e0a\u662f\u6570\u7ec4\u9876\u90e8\u7684\u4e00\u5c42\u3002\u5b83\u4eec\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u5927\u5c0f\uff0c\u5e76\u4e14\u60a8\u53ef\u4ee5\u4f7f\u7528append()\u6dfb\u52a0\u66f4\u591a\u5143\u7d20\u3002<\/p>\n<p>\u521b\u5efa\u5207\u7247\u7684\u65b9\u6cd5\u6709\u5f88\u591a\u79cd\uff1a<\/p>\n<pre>\n\n\/\/ a is a nil slice\nvar a []byte\n\n\/\/ slice literal\nb := []byte{1, 2, 3}\n\n\/\/ slice from an array\nc := b[1:3]\n\n\/\/ slice with make\nd := make([]byte, 1, 3)\n\n\/\/ slice with new\ne := *new([]byte)\n\n\n<\/pre>\n<p>\u6700\u540e\u4e00\u4e2a\u5e76\u4e0d\u5e38\u89c1\uff0c\u4f46\u5b83\u662f\u5408\u6cd5\u7684\u8bed\u6cd5\u3002<\/p>\n<p>\u4e0e\u6570\u7ec4\u4e0d\u540c\uff0c\u6570\u7ec4\u4e2d\u7684 len \u548c cap \u662f\u5e38\u91cf\u5e76\u4e14\u59cb\u7ec8\u76f8\u7b49\uff0c\u800c\u5207\u7247\u5219\u4e0d\u540c\u3002\u5728\u6570\u7ec4\u4e2d\uff0cgo \u7f16\u8bd1\u5668\u63d0\u524d\u77e5\u9053\u957f\u5ea6\u548c\u5bb9\u91cf\uff0c\u751a\u81f3\u5c06\u5176\u70d8\u7119\u5230 go \u6c47\u7f16\u4ee3\u7801\u4e2d\u3002 <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730009017671dd7b9ae712.jpg\" class=\"aligncenter\"><\/p>\n<p> go \u6c47\u7f16\u4ee3\u7801\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u548c\u5bb9\u91cf <\/p>\n<p>\u4f46\u662f\u5bf9\u4e8e\u5207\u7247\uff0clen \u548c cap \u662f\u52a8\u6001\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u66f4\u6539\u3002<\/p>\n<p>\u5207\u7247\u5b9e\u9645\u4e0a\u53ea\u662f\u63cf\u8ff0\u5e95\u5c42\u6570\u7ec4\u201c\u5207\u7247\u201d\u7684\u4e00\u79cd\u65b9\u5f0f\u3002 <\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6709\u4e00\u4e2a\u50cf [1:3] \u8fd9\u6837\u7684\u5207\u7247\uff0c\u5b83\u4ece\u7d22\u5f15 1 \u5f00\u59cb\uff0c\u5728\u7d22\u5f15 3 \u4e4b\u524d\u7ed3\u675f\uff0c\u56e0\u6b64\u957f\u5ea6\u4e3a 3 &#8211; 1 = 2\u3002<\/p>\n<pre>\n\nfunc main() {\n    array := [6]int{0, 1, 2, 3, 4, 5}\n\n    slice := array[1:3]\n    fmt.println(slice, len(slice), cap(slice))\n}\n\n\/\/ output:\n\/\/ [1 2] 2 5\n\n\n<\/pre>\n<p>\u4e0a\u9762\u7684\u60c5\u51b5\u53ef\u4ee5\u7528\u4e0b\u56fe\u6765\u8868\u793a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730009017671dd7b9afe33.jpg\" class=\"aligncenter\"><\/p>\n<p> slice \u7684\u957f\u5ea6\u548c\u5bb9\u91cf <\/p>\n<p>\u5207\u7247\u7684\u957f\u5ea6\u5c31\u662f\u5176\u4e2d\u6709\u591a\u5c11\u4e2a\u5143\u7d20\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u6709 2 \u4e2a\u5143\u7d20 [1, 2]\u3002\u4e0a\u9650\u57fa\u672c\u4e0a\u662f\u4ece\u5207\u7247\u5f00\u5934\u5230\u5e95\u5c42\u6570\u7ec4\u7ed3\u5c3e\u7684\u5143\u7d20\u6570\u91cf\u3002<\/p>\n<p><em>\u4e0a\u9762\u5bf9\u5bb9\u91cf\u7684\u5b9a\u4e49\u6709\u70b9\u4e0d\u51c6\u786e\uff0c\u6211\u4eec\u4f1a\u5728\u589e\u957f\u90e8\u5206\u8ba8\u8bba\u5b83\u3002<\/em><\/p>\n<p>\u7531\u4e8e\u5207\u7247\u6307\u5411\u5e95\u5c42\u6570\u7ec4\uff0c\u56e0\u6b64\u5bf9\u5207\u7247\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u4e5f\u4f1a\u66f4\u6539\u5e95\u5c42\u6570\u7ec4\u3002<\/p>\n<blockquote>\n<p><em>\u201c\u6211\u901a\u8fc7 len \u548c cap \u51fd\u6570\u77e5\u9053\u5207\u7247\u7684\u957f\u5ea6\u548c\u5bb9\u91cf\uff0c\u4f46\u5982\u4f55\u627e\u51fa\u5207\u7247\u5b9e\u9645\u5f00\u59cb\u7684\u4f4d\u7f6e\uff1f\u201d<\/em><\/p>\n<\/blockquote>\n<p>\u8ba9\u6211\u5411\u60a8\u5c55\u793a 3 \u79cd\u901a\u8fc7\u67e5\u770b\u5176\u5185\u90e8\u8868\u793a\u6765\u67e5\u627e\u5207\u7247\u5f00\u5934\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 println \u6765\u83b7\u53d6\u5207\u7247\u7684\u539f\u59cb\u503c\uff0c\u800c\u4e0d\u662f\u4f7f\u7528 fmt.println\uff1a<\/p>\n<pre>\n\nfunc main() {\n    array := [6]byte{0, 1, 2, 3, 4, 5}\n    slice := array[1:3]\n\n    println(\"array:\", &amp;array)\n    println(\"slice:\", slice, len(slice), cap(slice))\n}\n\n\/\/ output:\n\/\/ array: 0x1400004e6f2\n\/\/ slice: [2\/5]0x1400004e6f3 2 5\n\n\n<\/pre>\n<p>\u4ece\u8be5\u8f93\u51fa\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u5207\u7247\u5e95\u5c42\u6570\u7ec4\u7684\u5730\u5740\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u5730\u5740\u4e0d\u540c\uff0c\u8fd9\u5f88\u5947\u602a\uff0c\u5bf9\u5427\uff1f <\/p>\n<p>\u8ba9\u6211\u4eec\u5728\u4e0b\u56fe\u4e2d\u5f62\u8c61\u5316\u8fd9\u4e00\u70b9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730009017671dd7b9b0da1.jpg\" class=\"aligncenter\"><\/p>\n<p> \u5207\u7247\u53ca\u5176\u5e95\u5c42\u6570\u7ec4 <\/p>\n<p>\u5982\u679c\u60a8\u5df2\u7ecf\u67e5\u770b\u4e86\u4e4b\u524d\u6709\u5173\u6570\u7ec4\u7684\u6587\u7ae0\uff0c\u60a8\u5c06\u4e86\u89e3\u5143\u7d20\u5982\u4f55\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u3002\u771f\u6b63\u53d1\u751f\u7684\u662f\u5207\u7247\u76f4\u63a5\u6307\u5411\u6570\u7ec4[1]\u3002<\/p>\n<p>\u8bc1\u660e\u8fd9\u4e00\u70b9\u7684\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 unsafe.slicedata \u83b7\u53d6\u6307\u5411\u5207\u7247\u5e95\u5c42\u6570\u7ec4\u7684\u6307\u9488\uff1a<\/p>\n<pre>\n\nfunc main() {\n    array := [6]byte{0, 1, 2, 3, 4, 5}\n    slice := array[1:3]\n\n    arrptr := unsafe.slicedata(slice)\n    println(\"array[1]:\", &amp;array[1])\n    println(\"slice.array:\", arrptr)\n}\n\n\/\/ output:\n\/\/ array[1]: 0x1400004e6f3\n\/\/ slice.array: 0x1400004e6f3\n\n\n<\/pre>\n<p>\u5f53\u60a8\u5c06\u5207\u7247\u4f20\u9012\u7ed9 unsafe.slicedata \u65f6\uff0c\u5b83\u4f1a\u8fdb\u884c\u4e00\u4e9b\u68c0\u67e5\u4ee5\u786e\u5b9a\u8981\u8fd4\u56de\u7684\u5185\u5bb9\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u5207\u7247\u7684\u5bb9\u91cf\u5927\u4e8e 0\uff0c\u5219\u8be5\u51fd\u6570\u8fd4\u56de\u6307\u5411\u5207\u7247\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u6307\u9488\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a array[1]\uff09\u3002<\/li>\n<li>\u5982\u679c\u5207\u7247\u4e3a\u96f6\uff0c\u5219\u51fd\u6570\u4ec5\u8fd4\u56de nil\u3002<\/li>\n<li>\u5982\u679c\u5207\u7247\u4e0d\u4e3a\u96f6\u4f46\u5bb9\u91cf\u4e3a\u96f6\uff08\u7a7a\u5207\u7247\uff09\uff0c\u5219\u8be5\u51fd\u6570\u4f1a\u7ed9\u60a8\u4e00\u4e2a\u6307\u9488\uff0c\u4f46\u5b83\u6307\u5411\u201c\u672a\u6307\u5b9a\u7684\u5185\u5b58\u5730\u5740\u201d\u3002<\/li>\n<\/ul>\n<p>\u60a8\u53ef\u4ee5\u5728 go \u6587\u6863\u4e2d\u627e\u5230\u6240\u6709\u8fd9\u4e9b\u5185\u5bb9\u3002<\/p>\n<blockquote>\n<p><em>\u201c\u2018\u8fd9\u4e2a\u6307\u9488\u6307\u5411\u672a\u6307\u5b9a\u7684\u5185\u5b58\u5730\u5740\u2019\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u201d<\/em><\/p>\n<\/blockquote>\n<p>\u6709\u70b9\u65ad\u7ae0\u53d6\u4e49\uff0c\u4e0d\u8fc7\u6ee1\u8db3\u4e00\u4e0b\u6211\u4eec\u7684\u597d\u5947\u5fc3\u5427:)<\/p>\n<p>\u5728 go \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5927\u5c0f\u4e3a\u96f6\u7684\u7c7b\u578b\uff0c\u4f8b\u5982 struct{} \u6216 [0]int\u3002\u5f53 go \u8fd0\u884c\u65f6\u4e3a\u8fd9\u4e9b\u7c7b\u578b\u5206\u914d\u5185\u5b58\u65f6\uff0c\u5b83\u4e0d\u4f1a\u4e3a\u6bcf\u4e2a\u7c7b\u578b\u5206\u914d\u552f\u4e00\u7684\u5185\u5b58\u5730\u5740\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u540d\u4e3a zerobase \u7684\u7279\u6b8a\u53d8\u91cf\u7684\u5730\u5740\u3002<\/p>\n<p>\u60a8\u53ef\u80fd\u5df2\u7ecf\u660e\u767d\u4e86\uff0c\u5bf9\u5427\uff1f<\/p>\n<p>\u6211\u4eec\u524d\u9762\u63d0\u5230\u7684\u201c\u672a\u6307\u5b9a\u201d\u5185\u5b58\u5c31\u662f\u8fd9\u4e2a\u96f6\u57fa\u5730\u5740\u3002<\/p>\n<pre>\n\nfunc main() {\n    var a struct{}\n    fmt.printf(\"struct{}: %p\\n\", &amp;a)\n\n    var b [0]int\n    fmt.printf(\"[0]int: %p\\n\", &amp;b)\n\n    fmt.println(\"unsafe.slicedata([]int{}):\", unsafe.slicedata([]int{}))\n}\n\n\/\/ output:\n\/\/ struct{}: 0x104f24900\n\/\/ [0]int: 0x104f24900\n\/\/ unsafe.slicedata([]int{}): 0x104f24900\n\n\n<\/pre>\n<p>\u5f88\u9177\uff0c\u5bf9\u5427\uff1f\u5c31\u50cf\u6211\u4eec\u521a\u521a\u63ed\u5f00\u4e86 go \u6240\u9690\u85cf\u7684\u4e00\u4e2a\u5c0f\u79d8\u5bc6\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u7ee7\u7eed\u7b2c\u4e09\u6761\u8def\u3002<\/p>\n<p>\u5728\u5e55\u540e\uff0c\u5207\u7247\u53ea\u662f\u4e00\u4e2a\u5177\u6709\u4e09\u4e2a\u5b57\u6bb5\u7684\u7ed3\u6784\uff1aarray &#8211; \u6307\u5411\u5e95\u5c42\u6570\u7ec4\u7684\u6307\u9488\uff0clen &#8211; \u5207\u7247\u7684\u957f\u5ea6\uff0ccap &#8211; \u5207\u7247\u7684\u5bb9\u91cf\u3002<\/p>\n<pre>\n\ntype slice struct {\n    array unsafe.pointer\n    len   int\n    cap   int\n}\n\n\n<\/pre>\n<p>\u8fd9\u4e5f\u662f\u6211\u4eec\u8ba1\u7b97\u5207\u7247\u8d77\u70b9\u7684\u7b2c\u4e09\u79cd\u65b9\u6cd5\u7684\u8bbe\u7f6e\u3002\u5f53\u6211\u4eec\u8fd9\u6837\u505a\u65f6\uff0c\u6211\u4eec\u5c06\u8bc1\u660e\u4e0a\u9762\u7684\u7ed3\u6784\u786e\u5b9e\u662f\u5207\u7247\u5185\u90e8\u5de5\u4f5c\u7684\u65b9\u5f0f\u3002<\/p>\n<pre>\n\ntype sliceheader struct {\n    array unsafe.pointer\n    len   int\n    cap   int\n}\n\nfunc main() {\n    array := [6]byte{0, 1, 2, 3, 4, 5}\n\n    slice := array[1:3]\n    println(\"slice\", slice)\n\n    header := (*sliceheader)(unsafe.pointer(&amp;slice))\n    println(\"sliceheader:\", header.array, header.len, header.cap)\n}\n\n\/\/ output:\n\/\/ slice [2\/5]0x1400004e6f3\n\/\/ sliceheader: 0x1400004e6f3 2 5\n\n\n<\/pre>\n<p>\u8f93\u51fa\u6b63\u662f\u6211\u4eec\u6240\u671f\u671b\u7684\uff0c\u6211\u4eec\u901a\u5e38\u5c06\u8fd9\u4e2a\u5185\u90e8\u7ed3\u6784\u79f0\u4e3a\u5207\u7247\u5934\uff08sliceheader\uff09\u3002 reflect\u5305\u4e2d\u8fd8\u6709\u4e00\u4e2areflect.sliceheader\uff0c\u4f46\u5b83\u5df2\u88ab\u5f03\u7528\u3002<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u638c\u63e1\u4e86\u5207\u7247\u7684\u7ed3\u6784\uff0c\u662f\u65f6\u5019\u6df1\u5165\u4e86\u89e3\u5b83\u4eec\u7684\u5b9e\u9645\u884c\u4e3a\u4e86\u3002<\/p>\n<h2> \u5207\u7247\u5982\u4f55\u751f\u957f <\/h2>\n<p>\u4e4b\u524d\uff0c\u6211\u63d0\u5230<em>\u201c\u4e0a\u9650\u57fa\u672c\u4e0a\u662f\u57fa\u7840\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4ece\u5207\u7247\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u5230\u8be5\u6570\u7ec4\u7684\u672b\u5c3e\u3002\u201d<\/em>\u8fd9\u5e76\u4e0d\u5b8c\u5168\u51c6\u786e\uff0c\u53ea\u662f\u6b63\u786e\u7684\u5728\u90a3\u4e2a\u7279\u5b9a\u7684\u4f8b\u5b50\u4e2d\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5f53\u60a8\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u521b\u5efa\u65b0\u5207\u7247\u65f6\uff0c\u6709\u4e00\u4e2a\u9009\u9879\u53ef\u4ee5\u6307\u5b9a\u5207\u7247\u7684\u5bb9\u91cf\uff1a<\/p>\n<pre>\n\nfunc main() {\n    array := [6]int{0, 1, 2, 3, 4, 5}\n    slice := array[1:3:4]\n\n    println(slice)\n}\n\n\/\/ Output:\n\/\/ [2\/3]0x1400004e718\n\n\n<\/pre>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u5207\u7247\u64cd\u4f5c\u4e2d\u4e0d\u6307\u5b9a\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u5219\u4ece\u5207\u7247\u540e\u7684\u5207\u7247\u6216\u5207\u7247\u6570\u7ec4\u7684\u957f\u5ea6\u4e2d\u83b7\u53d6\u5bb9\u91cf\u3002<\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5207\u7247\u7684\u5bb9\u91cf\u8bbe\u7f6e\u4e3a\u539f\u59cb\u6570\u7ec4\u7684\u7d22\u5f15 4\uff08\u4e0d\u5305\u542b\u7d22\u5f15\uff0c\u5982\u957f\u5ea6\uff09\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730009017671dd7b9b5841.jpg\" class=\"aligncenter\"><\/p>\n<p> \u5207\u7247\u5bb9\u91cf <\/p>\n<p>\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u91cd\u65b0\u5b9a\u4e49\u5207\u7247\u5bb9\u91cf\u7684\u771f\u6b63\u542b\u4e49\u3002<\/p>\n<p><em>\u201c\u5207\u7247\u7684\u5bb9\u91cf\u662f\u5b83\u5728\u9700\u8981\u589e\u957f\u4e4b\u524d\u53ef\u4ee5\u5bb9\u7eb3\u7684\u6700\u5927\u5143\u7d20\u6570\u91cf\u3002\u201d<\/em><\/p>\n<p>\u5982\u679c\u4f60\u4e0d\u65ad\u5411\u5207\u7247\u6dfb\u52a0\u5143\u7d20\u5e76\u4e14\u5b83\u8d85\u51fa\u4e86\u5176\u5f53\u524d\u5bb9\u91cf\uff0cgo \u5c06\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u66f4\u5927\u7684\u6570\u7ec4\uff0c\u590d\u5236\u5143\u7d20\uff0c\u5e76\u5c06\u8be5\u65b0\u6570\u7ec4\u7528\u4f5c\u5207\u7247\u7684\u57fa\u7840\u6570\u7ec4\u3002<\/p>\n<hr>\n<blockquote>\n<p>\u5b8c\u6574\u7684\u5e16\u5b50\u53ef\u4ee5\u5728\u8fd9\u91cc\u627e\u5230\uff1ahttps:\/\/victoriametrics.com\/blog\/go-slice\/<\/p>\n<\/blockquote>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u4e2d\u7684\u5207\u7247\uff1a\u53d8\u5927\u6216\u56de\u5bb6\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<p> \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb \u5220\u9664  <\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   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