使用下面这个函数可以达到域名通配符的效果，对指定的域名应用代理

代码

var autoproxy_host = {
"*.zoro.com":1,
"*.facebook.net":1,
"*.facebook.com":1,
"*.google.com":1
}
function FindProxyForURL(url, host) {
    var lastPos;
    var host_tmp = host;
    var prefix = '*.';
    do {
        if (autoproxy_host.hasOwnProperty(host_tmp)) {
            return 'PROXY 127.0.0.1:1080';
        }
        lastPos = host.indexOf('.') + 1;
        host = host.slice(lastPos);
        host_tmp = prefix.concat(host);
    } while (lastPos >= 1);
    return 'DIRECT';
}