用angular实现$.param()

var params = { width:1900, height:1200 };
var str = jQuery.param(params);
console.log(str);

function serializeData( data ) { 
    // If this is not an object, defer to native stringification.
    if ( ! angular.isObject( data ) ) { 
        return( ( data == null ) ? "" : data.toString() ); 
    }            
    var buffer = [];            
    // Serialize each key in the object.
    for ( var name in data ) { 
        if ( ! data.hasOwnProperty( name ) ) { 
            continue; 
        }            
        var value = data[ name ];            
        buffer.push(
            encodeURIComponent( name ) + "=" + encodeURIComponent( ( value == null ) ? "" : value )
        ); 
    }            
    // Serialize the buffer and clean it up for transportation.
    var source = buffer.join( "&" ).replace( /%20/g, "+" ); 
    return( source ); 
};