1、选择post方式，并输入请求的链接

2、填写Headers:

Key: Content-Type  Value: multipart/form-data

3、填写Body，选择form-data，Key的类型选择file,然后在Value中选择文件上传，即可

4、上传多个文件的话，直接增加不同的Key即可；

5、python服务端接收代码

@app.route('/rectext', methods=['POST'])
def rec_text():
    '''
        识别图片中的文字，上传图片
        ---
        tags:
          - tools
        consumes: [
              "multipart/form-data"
            ]
        parameters:
          - in: formData
            name: file
            type: file 
            required: true
            description: upload a image file 
    '''
    if "file" not in request.files:
        abort(400)
    filebytes = request.files["file"]
    ret_text = rec_text_from_image.rec_text(filebytes)
    ret_text = ret_text.replace("\n", " ").strip()
    return ret_text