ajax请求格式...........

var rowsData = $('#receiptPrintList').datagrid('getSelections');$.ajax({    type: "post",    url: "topupRecordController.do?updateReceiptInfo",    data: {        refNo:rowsData[0].refNo    },    dataType: "json",    success: function(result){    }});//作用同上$.post("topupRecordController.do?updateReceiptInfo", {        refNo:rowsData[0].refNo    },    function (data) {    }, "json");