{"id":2476,"date":"2020-11-13T15:06:37","date_gmt":"2020-11-13T07:06:37","guid":{"rendered":"http:\/\/admin.evshou.com\/?p=2476"},"modified":"2020-11-23T11:23:07","modified_gmt":"2020-11-23T03:23:07","slug":"2020javaweb%e6%95%99%e7%a8%8b%e4%b9%8bjavascript%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.9713job.com\/?p=2476","title":{"rendered":"2020javaweb\u6559\u7a0b\u4e4bJavaScript\u6b63\u5219\u8868\u8fbe\u5f0f"},"content":{"rendered":"<h3>2020javaweb\u6559\u7a0b\u4e4bJavaScript\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<p><span style=\"color: #ff0000;\"><strong>\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong><\/span><\/p>\n<p>\u8bed\u6cd5\uff1a<br \/>\nvar patt=\/pattern\/modifiers;<\/p>\n<p>\u5982\uff1a<br \/>\nvar re=\/\\w+\/;<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u4fee\u9970\u7b26\uff1a<\/strong><\/span><br \/>\n\u4fee\u9970\u7b26\u7528\u4e8e\u6267\u884c\u533a\u5206\u5927\u5c0f\u5199\u548c\u5168\u5c40\u5339\u914d\uff0c\u9ed8\u8ba4\u533a\u5206\u5927\u5c0f\u5199\u3002<\/p>\n<p><span style=\"color: #ff0000;\">i\uff1a\u5927\u5c0f\u5199\u4e0d\u654f\u611f<\/span><br \/>\n<span style=\"color: #ff0000;\">g\uff1a\u5168\u5c40\u5339\u914d<\/span><br \/>\n<span style=\"color: #ff0000;\">m\uff1a\u591a\u884c\u5339\u914d\uff0c\u9002\u7528\u4e8e\u6587\u672c\u57df<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u65b9\u6cd5\uff1a<\/span><br \/>\n<!--more--><\/p>\n<p><span style=\"color: #ff0000;\">test()\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\uff0c\u8fd4\u56deBoolean\u503c<\/span><br \/>\n<span style=\"color: #ff0000;\">exec()\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\uff0c\u8fd4\u56de\u627e\u5230\u7684\u503c\uff0c\u5e76\u786e\u5b9a\u5176\u4f4d\u7f6e<\/span><\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>var s=\"Hello World\";\r\nvar reg=<span style=\"color: #ff0000;\">\/wor\/<\/span>ig;\/\/i\u4e3a\u4e0d\u533a\u5206\u5927\u5c0f\u5199,g\u4e3a\u5168\u5c40\u5339\u914d\r\ndocument.write(reg.test(s));\r\n\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar s1=\"what you name\";\r\nvar reg2=<span style=\"color: #ff0000;\">\/name\/<\/span>ig;\r\nvar s2=s1.replace(reg2,\"age\");\r\ndocument.write(s2);\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/8.png\" alt=\"\" width=\"680\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u8868\u8fbe\u5f0f\u65b9\u6cd5<\/strong><\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/9.png\" alt=\"\" width=\"680\" \/><\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>var s3=\"what you name\";\r\nvar reg3=\/<span style=\"color: #ff0000;\">[aye]<\/span>\/ig;\r\ndocument.write(s3.replace(reg3,\"i\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg4=\/<span style=\"color: #ff0000;\">[^aye]<\/span>\/ig;\r\ndocument.write(s3.replace(reg4,\"*\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar n1=\"123456789\";\r\nvar reg5=\/<span style=\"color: #ff0000;\">[3-7]<\/span>\/g;\r\ndocument.write(n1.replace(reg5,\"0\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/10.png\" alt=\"\" width=\"680\" \/><\/p>\n<pre>var s4=\"abCdeFg\";\r\nvar reg6=\/<span style=\"color: #ff0000;\">[a-d]<\/span>\/ig;\r\ndocument.write(s4.replace(reg6,\"d\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg7=\/<span style=\"color: #ff0000;\">[^a-d]<\/span>\/ig;\r\ndocument.write(s4.replace(reg7,\"a\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg8=\/<span style=\"color: #ff0000;\">[A-Z]<\/span>\/ig;\r\ndocument.write(s4.replace(reg8,\"A\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg9=\/<span style=\"color: #ff0000;\">[A-z]<\/span>\/ig;\r\ndocument.write(s4.replace(reg9,\"z\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg10=\/<span style=\"color: #ff0000;\">[^acd]<\/span>\/ig;\r\ndocument.write(s4.replace(reg10,\"*\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg11=\/<span style=\"color: #ff0000;\">[acd]<\/span>\/ig;\r\ndocument.write(s4.replace(reg11,\"x\"));\r\ndocument.write(\"&lt;br&gt;\");\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/11.png\" alt=\"\" width=\"680\" \/><\/p>\n<pre>var s5=\"orange\";\r\n\r\nvar reg12=\/<span style=\"color: #ff0000;\">(ang|ge|ra)<\/span>\/ig;\r\ndocument.write(reg12.test());\r\ndocument.write(\"&lt;br&gt;\");\r\n\r\nvar reg13=\/<span style=\"color: #ff0000;\">(ang)<\/span>\/ig;\r\ndocument.write(s5.replace(reg13,\"k\"));\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/12.png\" alt=\"\" width=\"680\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u5143\u5b57\u7b26<\/strong><\/span><\/p>\n<p>\u5143\u5b57\u7b26\uff08Metacharacter\uff09\u662f\u62e5\u6709\u7279\u6b8a\u542b\u4e49\u7684\u5b57\u7b26\uff1a<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/13.png\" alt=\"\" width=\"680\" \/><\/p>\n<pre>var s1=\"I can do 520\";\r\nvar reg1=\/.\/ig;\r\ndocument.write(s1.replace(reg1,\"o\")+\"&lt;br&gt;\");\r\n\r\nvar reg2=\/\\w\/ig;\r\ndocument.write(reg2.exec(s1)+\"&lt;br&gt;\");\r\n\r\nvar reg3=\/\\W\/ig;\r\ndocument.write(reg2.exec(s1)+\"&lt;br&gt;\");\r\n\r\nvar reg4=\/\\d\/ig;\r\ndocument.write(reg4.exec(s1)+\"&lt;br&gt;\");\r\n\r\nvar reg5=\/\\D\/ig;\r\ndocument.write(reg5.exec(s1)+\"&lt;br&gt;\");\r\n\r\nvar reg6=\/\\s\/ig;\r\ndocument.write(reg6.test(s1)+\"&lt;br&gt;\");\r\n\r\nvar reg7=\/\\S\/ig;\r\ndocument.write(reg7.test(s1)+\"&lt;br&gt;\");\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/14.png\" alt=\"\" width=\"680\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u91cf\u8bcd<\/strong><\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/15.png\" alt=\"\" width=\"680\" \/><\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>var s1=\"Hello World 520\";\r\n\r\nvar reg1=\/o+\/ig;\r\ndocument.write(s1.replace(reg1,\"a\")+\"&lt;br&gt;\");\r\n\r\nvar reg2=\/lo*\/ig;\r\ndocument.write(s1.replace(reg2,\"a\")+\"&lt;br&gt;\")\r\n\r\nvar reg3=\/el?\/ig;\r\ndocument.write(s1.replace(reg3,\"ab\")+\"&lt;br&gt;\")\r\n\r\nvar reg4=\/el{2}\/ig;\r\ndocument.write(s1.replace(reg4,\"ab\")+\"&lt;br&gt;\")\r\n\r\nvar reg5=\/hel{2,}\/ig;\r\ndocument.write(s1.replace(reg5,\"ab\")+\"&lt;br&gt;\")\r\n\r\nvar reg6=\/e{1,3}\/ig;\r\ndocument.write(s1.replace(reg6,\"ab\")+\"&lt;br&gt;\")\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/16.png\" alt=\"\" width=\"680\" \/><\/p>\n<pre>var s=\"Hello World the 123456\";\r\n\r\nvar reg=\/6$\/ig;\r\ndocument.write(s.replace(reg,\"ab\")+\"&lt;br&gt;\")\r\n\r\nvar reg2=\/^H\/ig;\r\ndocument.write(s.replace(reg2,\"ab\")+\"&lt;br&gt;\")\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/17.png\" alt=\"\" width=\"680\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\u65b9\u6cd5<\/strong><\/span><\/p>\n<p><span style=\"color: #ff0000;\">exec()<\/span>\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\u3002\u8fd4\u56de\u627e\u5230\u7684\u503c\uff0c\u5e76\u786e\u5b9a\u5176\u4f4d\u7f6e\u3002<br \/>\n<span style=\"color: #ff0000;\">test()<\/span>\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\u3002\u8fd4\u56de true \u6216 false\u3002<\/p>\n<pre>var s=\"Hello World the 123456\";\r\n\r\nvar reg=\/\\d{3}\/ig;\r\ndocument.write(reg.test(s)+\"&lt;br&gt;\")\r\n\r\nvar reg2=\/\\w{7}\/ig;\r\ndocument.write(reg2.test(s)+\"&lt;br&gt;\")\r\n\r\nvar reg3=\/[A-Z]{5}\/ig;\r\ndocument.write(reg3.test(s)+\"\\t\")\r\ndocument.write(reg3.exec(s)+\"&lt;br&gt;\")\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/18.png\" alt=\"\" width=\"680\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u652f\u6301\u6b63\u5219\u8868\u8fbe\u5f0f\u7684String\u5bf9\u8c61\u7684\u65b9\u6cd5<\/strong><\/span><\/p>\n<p>search\uff1a\u68c0\u7d22\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u76f8\u5339\u914d\u7684\u503c<br \/>\nmatch\uff1a\u627e\u5230\u4e00\u4e2a\u6216\u591a\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5339\u914d<br \/>\nreplace\uff1a\u66ff\u6362\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7684\u5b50\u4e32<br \/>\nsplit\uff1a\u628a\u5b57\u7b26\u4e32\u5206\u5272\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4<\/p>\n<pre>var s=\"Hello World the 123456\";\r\n\r\nvar reg=\/[A-z]\/ig;\r\ndocument.write(s.match(reg)[4]+\"&lt;br&gt;\");\r\n\r\nvar reg2=\/[0-9]\/ig;\r\ndocument.write(s.match(reg2)[2]+\"&lt;br&gt;\");\r\n\r\nvar reg3=\/\\d\/ig;\r\ndocument.write(s.match(reg3)[5]+\"&lt;br&gt;\");\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/19.png\" alt=\"\" width=\"680\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u5b9e\u4f8b<\/strong><\/span><\/p>\n<pre>\/\/\u5339\u914d\u624b\u673a\u53f7\r\nvar reg = \/^1\\d{10}$\/;\r\n\r\n\/\/\u5339\u914dQQ\u53f7\r\nvar reg = \/^[1-9]\\d{4,10}$\/;\r\n\r\n\/\/\u5339\u914d\u8eab\u4efd\u8bc1\u53f7\r\nvar reg = \/^[1-9]\\d{16}[Xx\\d]$\/;\r\n\r\n\/\/\u53d8\u91cf\u540d\u68c0\u6d4b(\u53ea\u80fd\u7531\u5b57\u6bcd\uff0c\u6570\u5b57\uff0c\u4e0b\u5212\u7ebf\u7ec4\u6210\uff0c\u4e14\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934\uff0c\u957f\u5ea66-15)\r\nvar reg = \/^[A-z_]\\w{5,14}$\/;\r\n\r\n\/*\u5224\u65ad\u662f\u5426\u4e3a\u90ae\u7bb1email\r\n\u9a8c\u8bc1\u89c4\u5219\uff1a\u00a0\u7535\u5b50\u90ae\u7bb1\u7684\u6b63\u786e\u5199\u6cd5\u4e00\u822c\u4e3a: \u7528\u6237\u540d@\u90ae\u7bb1\u7f51\u7ad9.com(.cn)\u00a0\r\n\r\n\u7b2c\u4e00\u90e8\u5206\uff1a\u7531\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\u3001\u77ed\u7ebf\u201c-\u201d\u7ec4\u6210\r\n\r\n\u7b2c\u4e8c\u90e8\u5206\uff1a\u4e3a\u4e00\u4e2a\u57df\u540d\uff0c\u57df\u540d\u7531\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u77ed\u7ebf\u201c-\u201d\u3001\u57df\u540d\u540e\u7f00\u7ec4\u6210\uff08\u57df\u540d\u540e\u7f00\u4e00\u822c\u4e3a\u4e24\u4f4d\u5230\u4e09\u4f4d\u3002\u4f8b\u5982\uff1acom cn net\u73b0\u5728\u57df\u540d\u6709\u7684\u4e5f\u4f1a\u5927\u4e8e\u56db\u4f4d\uff09*\/\r\n\r\n function isEmail(str){\r\n        var reg =\/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\\.[a-zA-Z0-9_-]{2,3}){1,2})$\/;\r\n        return reg.test(str);\r\n}\r\n<\/pre>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2254\" src=\"\/wp-content\/uploads\/2020\/11\/13\/20.png\" alt=\"\" width=\"680\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2020javaweb\u6559\u7a0b\u4e4bJavaScript\u6b63\u5219\u8868\u8fbe\u5f0f \u6b63\u5219\u8868\u8fbe\u5f0f \u8bed\u6cd5\uff1a var patt=\/patte [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-2476","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2476"}],"version-history":[{"count":2,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2476\/revisions"}],"predecessor-version":[{"id":2478,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2476\/revisions\/2478"}],"wp:attachment":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}