\u8fd9\u6b21\u7ed9\u5927\u5bb6\u5e26\u6765console\u600e\u6837\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\uff0cconsole\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\u7684\u6709\u54ea\u4e9b\uff0c\u4e0b\u9762\u5c31\u662f\u5b9e\u6218\u6848\u4f8b\uff0c\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u3002<\/p>\n
\u6211\u4eec\u9996\u5148\u521b\u5efa\u5982\u4e0b\u6587\u4ef6\uff1a<\/p>\n
\/\/ index.js\r\nlet fs = require('fs');\r\nlet options = {\r\n flags: 'a', \/\/ append\u6a21\u5f0f\r\n encoding: 'utf8', \/\/ utf8\u7f16\u7801\r\n};\r\nlet stdout = fs.createWriteStream('.\/stdout.log', options);\r\nlet stderr = fs.createWriteStream('.\/stderr.log', options);\r\n\/\/ \u521b\u5efalogger\r\nlet logger = new console.Console(stdout, stderr);\r\nfor (let i = 0; i < 100; i++) {\r\n logger.log(`log message ${i}`);\r\n logger.error(`err message ${i}`);\r\n}<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5176\u5b9e\u662f\u521b\u5efa\u4e86\u4e00\u4e2aconsole.Console\u7c7b\u7684\u5b9e\u4f8b\uff0c\u8be5\u7c7b\u9700\u8981\u6307\u5b9a\u4e24\u4e2a\u53c2\u6570\uff0c\u5373\u6807\u51c6\u8f93\u51fa\u6d41\u548c\u6807\u51c6\u9519\u8bef\u8f93\u51fa\u6d41\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5b9e\u9645\u4e0a\u662f\u5bf9\u5e94\u4e86process.stdout\u548cprocess.stderr\uff0c\u4ee5\u4e0a\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5c06\u8fd9\u4e24\u4e2a\u8f93\u51fa\u6d41\u6539\u4e3a\u4e86\u6587\u4ef6\u8f93\u51fa\u6d41\uff0c\u5e76\u6307\u5b9a\u4e3a\u6587\u4ef6\u8ffd\u52a0\u6a21\u5f0f\uff0c\u8fd9\u6837\u5373\u53ef\u5c06\u65e5\u5fd7\u4fe1\u606f\u8f93\u51fa\u5230\u6307\u5b9a\u7684\u6587\u4ef6\u4e2d\u53bb\u3002\u8fd0\u884c\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u4f1a\u751f\u6210stdout.log\u548cstderr.log\u4e24\u4e2a\u6587\u4ef6\u3002<\/p>\n
stdout.log\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
log message 0\r\nlog message 1\r\nlog message 2\r\nlog message 3\r\nlog message 4\r\nlog message 5\r\nlog message 6\r\nlog message 7\r\nlog message 8\r\nlog message 9\r\nlog message 10\r\n...<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
stderr.log\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
err message 0\r\nerr message 1\r\nerr message 2\r\nerr message 3\r\nerr message 4\r\nerr message 5\r\nerr message 6\r\nerr message 7\r\nerr message 8\r\nerr message 9\r\nerr message 10\r\n...<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u770b\u4e0a\u53bb\u4fe1\u606f\u8fd8\u6bd4\u8f83\u7b80\u5355\uff0c\u4e0d\u50cf\u662f\u65e5\u5fd7\u6587\u4ef6\u7684\u6837\u5b50\uff0c\u6211\u4eec\u6216\u8bb8\u5f97\u4e3a\u6bcf\u6761\u65e5\u5fd7\u6dfb\u52a0\u4e00\u4e2a\u65f6\u95f4\u624d\u884c\uff0c\u4e0b\u9762\u5148\u4e3aDate\u5bf9\u8c61\u6dfb\u52a0\u4e00\u4e2aformat\u7684\u539f\u578b\u65b9\u6cd5\uff1a<\/p>\n
\/\/ \u6dfb\u52a0format\u65b9\u6cd5\r\nDate.prototype.format = function (format) {\r\n if (!format) {\r\n format = 'yyyy-MM-dd HH:mm:ss';\r\n }\r\n \r\n \/\/ \u75280\u8865\u9f50\u6307\u5b9a\u4f4d\u6570\r\n let padNum = function (value, digits) {\r\n return Array(digits - value.toString().length + 1).join('0') + value;\r\n };\r\n \/\/ \u6307\u5b9a\u683c\u5f0f\u5b57\u7b26\r\n let cfg = {\r\n yyyy: this.getFullYear(), \/\/ \u5e74\r\n MM: padNum(this.getMonth() + 1, 2), \/\/ \u6708\r\n dd: padNum(this.getDate(), 2), \/\/ \u65e5\r\n HH: padNum(this.getHours(), 2), \/\/ \u65f6\r\n mm: padNum(this.getMinutes(), 2), \/\/ \u5206\r\n ss: padNum(this.getSeconds(), 2), \/\/ \u79d2\r\n fff: padNum(this.getMilliseconds(), 3), \/\/ \u6beb\u79d2\r\n };\r\n return format.replace(\/([a-z]|[A-Z])()*\/ig, function (m) {\r\n return cfg[m];\r\n });\r\n}<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7136\u540e\u518d\u6539\u5199\u524d\u9762\u7684\u4e3b\u6587\u4ef6\uff1a<\/p>\n
\/\/ index.js\r\nlet fs = require('fs');\r\nlet options = {\r\n flags: 'a', \/\/ append\u6a21\u5f0f\r\n encoding: 'utf8', \/\/ utf8\u7f16\u7801\r\n};\r\nlet stdout = fs.createWriteStream('.\/stdout.log', options);\r\nlet stderr = fs.createWriteStream('.\/stderr.log', options);\r\n\/\/ \u521b\u5efalogger\r\nlet logger = new console.Console(stdout, stderr);\r\n\/\/ \u6dfb\u52a0format\u65b9\u6cd5\r\nDate.prototype.format = function (format) {\r\n if (!format) {\r\n format = 'yyyy-MM-dd HH:mm:ss';\r\n }\r\n \r\n \/\/ \u75280\u8865\u9f50\u6307\u5b9a\u4f4d\u6570\r\n let padNum = function (value, digits) {\r\n return Array(digits - value.toString().length + 1).join('0') + value;\r\n };\r\n \/\/ \u6307\u5b9a\u683c\u5f0f\u5b57\u7b26\r\n let cfg = {\r\n yyyy: this.getFullYear(), \/\/ \u5e74\r\n MM: padNum(this.getMonth() + 1, 2), \/\/ \u6708\r\n dd: padNum(this.getDate(), 2), \/\/ \u65e5\r\n HH: padNum(this.getHours(), 2), \/\/ \u65f6\r\n mm: padNum(this.getMinutes(), 2), \/\/ \u5206\r\n ss: padNum(this.getSeconds(), 2), \/\/ \u79d2\r\n fff: padNum(this.getMilliseconds(), 3), \/\/ \u6beb\u79d2\r\n };\r\n return format.replace(\/([a-z]|[A-Z])()*\/ig, function (m) {\r\n return cfg[m];\r\n });\r\n}\r\nfor (let i = 0; i < 100; i++) {\r\n let time = new Date().format('yyyy-MM-dd HH:mm:ss.fff');\r\n logger.log(`[${time}] - log message ${i}`);\r\n logger.error(`[${time}] - err message ${i}`);\r\n}<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u91cd\u65b0\u8fd0\u884c\u7a0b\u5e8f\uff0c\u7136\u540e\u67e5\u770b\u4e24\u4e2a\u65e5\u5fd7\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n
stdout.log\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
[2018-04-27 07:30:54.309] - log message 0\r\n[2018-04-27 07:30:54.312] - log message 1\r\n[2018-04-27 07:30:54.312] - log message 2\r\n[2018-04-27 07:30:54.312] - log message 3\r\n[2018-04-27 07:30:54.312] - log message 4\r\n[2018-04-27 07:30:54.312] - log message 5\r\n[2018-04-27 07:30:54.312] - log message 6\r\n[2018-04-27 07:30:54.312] - log message 7\r\n[2018-04-27 07:30:54.312] - log message 8\r\n[2018-04-27 07:30:54.312] - log message 9\r\n[2018-04-27 07:30:54.312] - log message 10\r\n...<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
stderr.log\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
[2018-04-27 07:30:54.309] - err message 0\r\n[2018-04-27 07:30:54.312] - err message 1\r\n[2018-04-27 07:30:54.312] - err message 2\r\n[2018-04-27 07:30:54.312] - err message 3\r\n[2018-04-27 07:30:54.312] - err message 4\r\n[2018-04-27 07:30:54.312] - err message 5\r\n[2018-04-27 07:30:54.312] - err message 6\r\n[2018-04-27 07:30:54.312] - err message 7\r\n[2018-04-27 07:30:54.312] - err message 8\r\n[2018-04-27 07:30:54.312] - err message 9\r\n[2018-04-27 07:30:54.312] - err message 10\r\n...<\/pre>\n \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u76f8\u4fe1\u770b\u4e86\u672c\u6587\u6848\u4f8b\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86\u65b9\u6cd5\uff0c\u66f4\u591a\u7cbe\u5f69\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n
\u63a8\u8350\u9605\u8bfb\uff1a<\/p>\n
<\/p>\n
<\/p>\n
\u4ee5\u4e0a\u5c31\u662fconsole\u600e\u6837\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u6b21\u7ed9\u5927\u5bb6\u5e26\u6765console\u600e\u6837\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\uff0cconsole\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\u7684\u6709\u54ea\u4e9b\uff0c\u4e0b\u9762\u5c31\u662f\u5b9e\u6218\u6848\u4f8b\uff0c\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u3002 \u6211\u4eec\u9996\u5148\u521b\u5efa\u5982\u4e0b\u6587\u4ef6\uff1a \/\/ index.js let fs = require(‘fs’); let options = { flags: ‘a’, \/\/ append\u6a21\u5f0f encoding: ‘utf8’, \/\/ utf8\u7f16\u7801 }; let stdout = fs.createWriteStream(‘.\/stdout.log’, options); let stderr = fs.createWriteStream(‘.\/stderr.log’, options); \/\/ \u521b\u5efalogger let logger = new console.Console(stdout, stderr); for (let i = 0; i < 100; i++) { logger.log(`log message ${i}`); logger.error(`err message ${i}`); […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-31519","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/31519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=31519"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/31519\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=31519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=31519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=31519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}