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// 用正则匹配出正确的配对，非法的全部过滤掉，简单，方便
function getQueryObject(url) {
    url = url == null ? window.location.href : url;
    var search = url.substring(url.lastIndexOf("?") + 1);
    var obj = {};
    var reg = /([^?&=]+)=([^?&=]*)/g;
    search.replace(reg, function (rs, $1, $2) {
        var name = decodeURIComponent($1);
        var val = decodeURIComponent($2);                
        val = String(val);
        obj[name] = val;
        return rs;
    });
    return obj;
}