加载完jQuery之后在js中重写params函数

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//二次编码，后台使用URLDecoder.decode()方法解码汉字
jQuery.param=function( a ) {
?var s = [ ];

?function add( key, value ){
??s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(encodeURIComponent(value));
?};

?// If an array was passed in, assume that it is an array
?// of form elements
?if ( jQuery.isArray(a) || a.jquery )
??// Serialize the form elements
??jQuery.each( a, function(){
???add( this.name, this.value );
??});

?// Otherwise, assume that it's an object of key/value pairs
?else
??// Serialize the key/values
??for ( var j in a )
???// If the value is an array then the key names need to be repeated
???if ( jQuery.isArray(a[j]) )
????jQuery.each( a[j], function(){
?????add( j, this );
????});
???else
????add( j, jQuery.isFunction(a[j]) ? a[j]() : a[j] );

?// Return the resulting serialization
?return s.join("&").replace(/%20/g, "+");
}