document cookie用 javascript 操作 Cookie 示例

用 javascript 操作 Cookie 示例

<Script language="javascript"> //写 Cookie(用分号“;”把表达式“var=value”分隔开) function Write2Cookie() { document.cookie="v1=123;" + "path=/;"; document.cookie="v2=321;" + "path=/;"; } //读 Cookie function getCookieVal(name) { var firstCharPos,lastCharPos; var theBigCookie = document.cookie; firstCharPos = theBigCookie.indexOf(name); if(firstCharPos != -1) {//skip 'name' and '='. firstCharPos +=name.length + 1; //Find the end of the value string (i.e. the next';'). lastCharPos = theBigCookie.indexOf(';', firstCharPos); if(lastCharPos == -1) lastCharPos = theBigCookie.length; //Return thevalue. return theBigCookie.substring(firstCharPos, lastCharPos); } else { return false;} } thev1=getCookieVal('v1') // read thev2=getCookieVal('v2') // read </Script>