pyhton requests模块post方法传参为多层字典时，转换错误， 如，表单传参 { “a”:1, “b”:{ “A”:2, “B”:3 } } post请求后看到form data是： a:1 b:A b:B 查看官方文档： More complicated POST requests Typically, you want to send some form-encoded data — much like an HTML form. To do this, simply p