4.不要在ajax中return false不会生效的

//校验产品服务费费率
function validateProductServiceFeeRate(id, serviceFeeRate) {
    var message = true;
    $.ajax({
        url: "/product/validateProductserviceFeeRate",
        type: "post",
        async: false,
        data: {id: id},
        success: function (data) {
            if (data.code == '0') {
                if (parseFloat(serviceFeeRate) > parseFloat(data.result)) {
                    IelpmDialog.fail("服务费费率不能超过产品最高服务费费率【" + data.result + "】");
                    message = false;
                }
            } else {
                IelpmDialog.fail("操作失败!")
            }
        }
    })
    return message;
}

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转载自blog.csdn.net/m0_37438942/article/details/84986905