from flask import Flask,request
app = Flask(__name__)

@app.route('/',methods=['POST','GET'])
def index():
    name = request.form.get("name")
    age = request.form.get("age")
    print(name)
    print(age)
    print(request.headers)
    print(request.method)
    print(request.url)
    return "request form run"

@app.route('/save',methods=['POST'])
def save_files():
    png = request.files.get('png')   #注意如果上傳的圖片是png格式的無論獲取get 還是儲存save 裡的檔案格式都需要用png
    png.save('./想你了.png')
    print(request.headers)
    print(request.method)
    print(request.url)
    return 'save png success'

if __name__ == '__main__':
    app.run()

　　執行上面的程式碼，啟動伺服器，然後在postman裡上傳png圖片：