在此行上方直接添加$('form').unbind('submit');:$('form').submit(function().

Add $('form').unbind('submit'); immediately above this line: $('form').submit(function().

我在这里找到了此解决方案: https://***.com/a/668354/300575

I found this solution here: https://***.com/a/668354/300575

注意:我通过复制代码并在服务器上对其进行测试来验证此方法是否有效.

Note: I verified that this works by copying your code and testing it on my server.