class BaseForm(Form):
    def __init__(self):
	    #这样如果json为空则不会抛异常，直接返回空
        data = request.get_json(silent=True)
        args = request.args.to_dict()
        super(BaseForm, self).__init__(data=data, **args)

    def validate_api_for(self):
        vali = super(BaseForm, self).validate()
        if not vali:
            raise ParameterException(msg=self.errors)
            #这里需要返回自身对象是因为外面连续调用
            #原本是分开调用：form = ClientForm()  form.validate_for_api()
            #现在是连续调用，要返回自身对象在去调用另外一个方法
	        #form = ClientForm().validate_for_api()
        return self