经常要用到的Javascript拆分字符串
var myfiles=\"city=北京市district=海淀区street=北四环西路streetno=9\"
var a=myfiles.replace(/[a-zA-Z=]/g,\",\");
var b=a.split(\",\");

var n=0;
for(var i=0;i<b.length;i++)
{
if(b[i]!=\"\")
{
c[n]=b[i];
n++;
}
}
var aa = c[0];
var bb = c[1];
var cc = c[2];
var dd = c[3];