c++生成cookies代码

function getCookie(c_name) { var cookstr = document.cookie; if (cookstr.length>0) { c_start = cookstr.indexOf(c_name+'='); if (c_start!=-1) { c_start = c_start + c_name.length+1 c_end = cookstr.indexOf(";",c_start) if (c_end!=-1) { return unescape(cookstr.substring(c_start,c_end)) } } } return null }