{"id":85,"date":"2009-08-04T14:05:07","date_gmt":"2009-08-04T06:05:07","guid":{"rendered":"http:\/\/www.cnmiss.cn\/?p=84"},"modified":"2010-12-02T06:31:06","modified_gmt":"2010-12-02T06:31:06","slug":"javascript-replace-%e7%9a%84%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.cnmiss.cn\/?p=85","title":{"rendered":"Javascript replace \u7684\u7528\u6cd5"},"content":{"rendered":"

replace\u65b9\u6cd5\u7684\u8bed\u6cd5\u662f\uff1astringObj.replace(rgExp, replaceText) \u5176\u4e2dstringObj\u662f\u5b57\u7b26\u4e32(string)\uff0creExp\u53ef\u4ee5\u662f\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61(RegExp)\u4e5f\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32(string)\uff0creplaceText\u662f\u66ff\u4ee3\u67e5\u627e\u5230\u7684\u5b57\u7b26\u4e32\u3002\u3002\u4e3a\u4e86\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u7684\u7406\u89e3\uff0c\u4e0b\u9762\u4e3e\u4e2a\u7b80\u5355\u4f8b\u5b50\u8bf4\u660e\u4e00\u4e0b<\/p>\n

<script language="javascript">
var stringObj="\u7ec8\u53e4\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u7ec8\u53e4\u4eba\u6c11";<\/p>\n

\/\/\u66ff\u6362\u9519\u522b\u5b57\u201c\u7ec8\u53e4\u201d\u4e3a\u201c\u4e2d\u56fd\u201d
\/\/\u5e76\u8fd4\u56de\u66ff\u6362\u540e\u7684\u65b0\u5b57\u7b26
\/\/\u539f\u5b57\u7b26\u4e32stringObj\u7684\u503c\u6ca1\u6709\u6539\u53d8
var newstr=stringObj.replace("\u7ec8\u53e4","\u4e2d\u56fd");
alert(newstr);
<\/script><\/p><\/blockquote>\n

\u4f46\u662f\uff0c\u770b\u5b8c\u4e0a\u9762\u7684\u4f8b\u5b50\u4e4b\u540e\uff0c\u4f60\u4f1a\u53d1\u73b0\u7b2c\u4e8c\u4e2a\u9519\u522b\u5b57\u201c\u7ec8\u53e4\u201d\u5e76\u6ca1\u6709\u88ab\u66ff\u6362\u6210\u201c\u4e2d\u56fd\u201d\uff0c\u6211\u4eec\u53ef\u4ee5\u6267\u884c\u4e8c\u6b21replace\u65b9\u6cd5\u628a\u7b2c\u4e8c\u4e2a\u9519\u522b\u5b57\u201c\u7ec8\u53e4\u201d\u4e5f\u66ff\u6362\u6389\uff0c\u7a0b\u5e8f\u7ecf\u8fc7\u6539\u8fdb\u4e4b\u540e\u5982\u4e0b\uff1a<\/p>\n

<script language="javascript">
var stringObj="\u7ec8\u53e4\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u7ec8\u53e4\u4eba\u6c11";<\/p>\n

\/\/\u66ff\u6362\u9519\u522b\u5b57\u201c\u7ec8\u53e4\u201d\u4e3a\u201c\u4e2d\u56fd\u201d
\/\/\u5e76\u8fd4\u56de\u66ff\u6362\u540e\u7684\u65b0\u5b57\u7b26
\/\/\u539f\u5b57\u7b26\u4e32stringObj\u7684\u503c\u6ca1\u6709\u6539\u53d8
var newstr=stringObj.replace("\u7ec8\u53e4","\u4e2d\u56fd");<\/p>\n

newstr=newstr.replace("\u7ec8\u53e4","\u4e2d\u56fd");
alert(newstr);
<\/script><\/p><\/blockquote>\n

\u6211\u4eec\u53ef\u4ee5\u4ed4\u7ec6\u7684\u60f3\u4e00\u4e0b\uff0c\u5982\u679c\u6709N\u7684N\u6b21\u65b9\u4e2a\u9519\u522b\u5b57\uff0c\u662f\u4e0d\u662f\u4e5f\u8981\u6267\u884cN\u7684N\u6b21\u65b9replace\u65b9\u6cd5\u6765\u66ff\u6362\u6389\u9519\u522b\u5b57\u5462\uff1f\uff1f\u5475\uff0c\u4e0d\u7528\u6015\uff0c\u6709\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u4e4b\u540e\u4e0d\u7528\u4e00\u4e2a\u9519\u522b\u5b57\u8981\u6267\u884c\u4e00\u6b21replace\u65b9\u6cd5\u3002\u3002\u7a0b\u5e8f\u7ecf\u8fc7\u6539\u8fdb\u4e4b\u540e\u7684\u4ee3\u7801\u5982\u4e0b<\/p>\n

<script language="javascript">
var reg=new RegExp("\u7ec8\u53e4","g"); \/\/\u521b\u5efa\u6b63\u5219RegExp\u5bf9\u8c61
var stringObj="\u7ec8\u53e4\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u7ec8\u53e4\u4eba\u6c11";
var newstr=stringObj.replace(reg,"\u4e2d\u56fd");
alert(newstr);
<\/script><\/p><\/blockquote>\n

\u4e0a\u9762\u8bb2\u7684\u662freplace\u65b9\u6cd5\u6700\u7b80\u5355\u7684\u5e94\u7528\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u6709\u6ca1\u6709\u770b\u61c2\uff1f\uff1f\u4e0b\u9762\u5f00\u59cb\u8bb2\u7a0d\u5fae\u590d\u6742\u4e00\u70b9\u7684\u5e94\u7528\u3002\u3002<\/p>\n

\u5927\u5bb6\u5728\u4e00\u4e9b\u7f51\u7ad9\u4e0a\u641c\u7d22\u6587\u7ae0\u7684\u65f6\u5019\uff0c\u4f1a\u53d1\u73b0\u8fd9\u4e48\u4e00\u4e2a\u73b0\u8c61\uff0c\u5c31\u662f\u641c\u7d22\u7684\u5173\u952e\u5b57\u4f1a\u9ad8\u4eae\u6539\u53d8\u989c\u8272\u663e\u793a\u51fa\u6765\uff1f\uff1f\u8fd9\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u5462\uff1f\uff1f\u5176\u5b9e\u6211\u4eec\u53ef\u4ee5\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5b9e\u73b0\uff0c\u5177\u4f53\u600e\u4e48\u6837\u5b9e\u73b0\u5462\uff1f\u7b80\u5355\u7684\u539f\u7406\u8bf7\u770b\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n

<script language="javascript">
var str="\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd";
var newstr=str.replace(\/(\u4eba)\/g,"<font color=red>$1<\/font>");
document.write(newstr);
<\/script><\/p><\/blockquote>\n

\u4e0a\u9762\u7684\u7a0b\u5e8f\u7f3a\u5c11\u4e92\u52a8\u6027\uff0c\u6211\u4eec\u518d\u6539\u8fdb\u4e00\u4e0b\u7a0b\u5e8f\uff0c\u5b9e\u73b0\u53ef\u4ee5\u81ea\u4e3b\u8f93\u5165\u8981\u67e5\u627e\u7684\u5b57\u7b26<\/p>\n

<script language="javascript">
var s=prompt("\u8bf7\u8f93\u5165\u5728\u67e5\u627e\u7684\u5b57\u7b26","\u4eba");
var reg=new RegExp("("+s+")","g");
var str="\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd";
var newstr=str.replace(reg,"<font color=red>$1<\/font>");
document.write(newstr);
<\/script><\/p><\/blockquote>\n

\u3000\u3000\u53ef\u80fd\u5927\u5bb6\u90fd\u4f1a\u5bf9$1\u8fd9\u4e2a\u7279\u6b8a\u5b57\u7b26\u8868\u793a\u4ec0\u4e48\u610f\u601d\u4e0d\u662f\u5f88\u7406\u89e3\uff0c\u5176\u5b9e$1\u8868\u793a\u7684\u5c31\u662f\u5de6\u8fb9\u8868\u8fbe\u5f0f\u4e2d\u62ec\u53f7\u5185\u7684\u5b57\u7b26\uff0c\u5373\u7b2c\u4e00\u4e2a\u5b50\u5339\u914d\uff0c\u540c\u7406\u53ef\u5f97$2\u8868\u793a\u7b2c\u4e8c\u4e2a\u5b50\u5339\u914d\u3002\u3002\u4ec0\u4e48\u662f\u5b50\u5339\u914d\u5462\uff1f\uff1f\u901a\u4fd7\u70b9\u8bb2\uff0c\u5c31\u662f\u5de6\u8fb9\u6bcf\u4e00\u4e2a\u62ec\u53f7\u662f\u7b2c\u4e00\u4e2a\u5b57\u5339\u914d\uff0c\u7b2c\u4e8c\u4e2a\u62ec\u53f7\u662f\u7b2c\u4e8c\u4e2a\u5b50\u5339\u914d\u3002\u3002<\/p>\n

\u5f53\u6211\u4eec\u8981\u628a\u67e5\u627e\u5230\u7684\u5b57\u7b26\u8fdb\u884c\u8fd0\u7b97\u7684\u65f6\u5019\uff0c\u600e\u4e48\u6837\u5b9e\u73b0\u5462\uff1f\uff1f\u5728\u5b9e\u73b0\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u8bb2\u4e00\u4e0b\u600e\u4e48\u6837\u83b7\u53d6\u67d0\u4e00\u4e2a\u51fd\u6570\u7684\u53c2\u6570\u3002\u3002\u5728\u51fd\u6570Function\u7684\u5185\u90e8\uff0c\u6709\u4e00\u4e2aarguments\u96c6\u5408\uff0c\u8fd9\u4e2a\u96c6\u5408\u5b58\u50a8\u4e86\u5f53\u524d\u51fd\u6570\u7684\u6240\u6709\u53c2\u6570\uff0c\u901a\u8fc7arguments\u53ef\u4ee5\u83b7\u53d6\u5230\u51fd\u6570\u7684\u6240\u6709\u53c2\u6570\uff0c\u4e3a\u4e86\u5927\u5bb6\u7406\u89e3\uff0c\u8bf7\u770b\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n

<script language="javascript">
function test()
{
alert("\u53c2\u6570\u4e2a\u6570\uff1a"+arguments.length);
alert("\u6bcf\u4e00\u4e2a\u53c2\u6570\u7684\u503c\uff1a"+arguments[0]);
alert("\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u503c"+arguments[1]);
\/\/\u53ef\u4ee5\u7528for\u5faa\u73af\u8bfb\u53d6\u6240\u6709\u7684\u53c2\u6570
}<\/p>\n

test("aa","bb","cc");
<\/script><\/p><\/blockquote>\n

\u770b\u61c2\u4e0a\u9762\u7684\u7a0b\u5e8f\u4e4b\u540e\uff0c\u6211\u4eec\u518d\u6765\u770b\u4e0b\u9762\u4e00\u4e2a\u6709\u8da3\u7684\u7a0b\u5e8f<\/p>\n

<script language="javascript">
var reg=new RegExp("\\\\d","g");
var str="abd1afa4sdf";
str.replace(reg,function(){alert(arguments.length);});
<\/script><\/p><\/blockquote>\n

\u6211\u4eec\u60ca\u5947\u7684\u53d1\u73b0\uff0c\u533f\u540d\u51fd\u6570\u7adf\u7136\u88ab\u6267\u884c\u4e86\u4e8c\u6b21\uff0c\u5e76\u4e14\u5728\u51fd\u6570\u91cc\u8fd8\u5e26\u6709\u4e09\u4e2a\u53c2\u6570\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u6267\u884c\u4e8c\u6b21\u5462\uff1f\uff1f\u8fd9\u4e2a\u5f88\u5bb9\u6613\u60f3\u5230\uff0c\u56e0\u4e3a\u6211\u4eec\u5199\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u5339\u914d\u5355\u4e2a\u6570\u5b57\u7684\uff0c\u800c\u88ab\u68c0\u6d4b\u7684\u5b57\u7b26\u4e32\u521a\u597d\u4e5f\u6709\u4e8c\u4e2a\u6570\u5b57\uff0c\u6545\u533f\u540d\u51fd\u6570\u88ab\u6267\u884c\u4e86\u4e8c\u6b21\u3002\u3002\u5728\u533f\u540d\u51fd\u6570\u5185\u90e8\u7684\u90a3\u4e09\u4e2a\u53c2\u6570\u5230\u5e95\u662f\u4ec0\u4e48\u5185\u5bb9\u5462\uff1f\uff1f\u4e3a\u4e86\u5f04\u6e05\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u770b\u4e0b\u9762\u7684\u4ee3\u7801\u3002<\/p>\n

<script language="javascript">
function test()
{
for(var i=0;i<arguments.length;i++)
{
alert("\u7b2c"+(i+1)+"\u4e2a\u53c2\u6570\u7684\u503c\uff1a"+arguments[i]);
}<\/p>\n

}
var reg=new RegExp("\\\\d","g");
var str="abd1afa4sdf";
str.replace(reg,test);
<\/script><\/p><\/blockquote>\n

\u7ecf\u8fc7\u89c2\u5bdf\u6211\u4eec\u53d1\u73b0\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u5339\u914d\u5230\u7684\u5b57\u7b26\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u5339\u914d\u65f6\u7684\u5b57\u7b26\u6700\u5c0f\u7d22\u5f15\u4f4d\u7f6e(RegExp.index)\uff0c\u7b2c\u4e09\u4e2a\u53c2\u6570\u8868\u793a\u88ab\u5339\u914d\u7684\u5b57\u7b26\u4e32(RegExp.input)\u3002\u5176\u5b9e\u8fd9\u4e9b\u53c2\u6570\u7684\u4e2a\u6570\uff0c\u8fd8\u4f1a\u968f\u7740\u5b50\u5339\u914d\u7684\u53d8\u591a\u800c\u53d8\u591a\u7684\u3002\u5f04\u6e05\u8fd9\u4e9b\u95ee\u9898\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u53e6\u5916\u7684\u4e00\u79cd\u5199\u6cd5<\/p>\n

<script language="javascript">
function test($1)
{
return "<font color='red'>"+$1+"<\/font>"
}
var s=prompt("\u8bf7\u8f93\u5165\u5728\u67e5\u627e\u7684\u5b57\u7b26","\u4eba");
var reg=new RegExp("("+s+")","g");
var str="\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\uff0c\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd";
var newstr=str.replace(reg,test);
document.write(newstr);
<\/script><\/p><\/blockquote>\n

\u770b\u4e86\u4e0a\u9762\u7684\u7a0b\u5e8f\uff0c\u539f\u6765\u53ef\u4ee5\u5bf9\u5339\u914d\u5230\u7684\u5b57\u7b26\u4e3a\u6240\u6b32\u4e3a\u3002\u4e0b\u9762\u7b80\u5355\u4e3e\u4e00\u4e2a\u5e94\u7528\u7684\u4f8b\u5b50<\/p>\n

<script language="javascript">
var str="\u4ed6\u4eca\u5e7422\u5c81\uff0c\u5979\u4eca\u5e7420\u5c81\uff0c\u4ed6\u7684\u7238\u7238\u4eca\u5e7445\u5c81\uff0c\u5979\u7684\u7238\u7238\u4eca\u5e7444\u5c81\uff0c\u4e00\u5171\u67094\u4eba"
function test($1)
{
var gyear=(new Date()).getYear()-parseInt($1)+1;
return $1+"("+gyear+"\u5e74\u51fa\u751f)";
}
var reg=new RegExp("(\\\\d+)\u5c81","g");
var newstr=str.replace(reg,test);
alert(str);
alert(newstr);
<\/script><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

replace\u65b9\u6cd5\u7684\u8bed\u6cd5\u662f\uff1astringObj.replace(rgExp, r … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[20],"class_list":["post-85","post","type-post","status-publish","format-standard","hentry","category-xxbj","tag-javascript"],"_links":{"self":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts\/85","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85"}],"version-history":[{"count":0,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnmiss.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}