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

@app.route("/lele",methods=["GET","POST"])
def lele():
    """ You can test this in postman by selecting `form-data` in the
    `Body` and giving the `name` as key and value michael (let's say)."""
    user=request.form['name'] 
    return str(user) # this is a POST request
    # return "lele"  # this is a GET request

if __name__=="__main__":
    app.run(debug=True)

• request.form:字典对象包含表单参数及其值的键-值对。

当你运行curl http://127.0.0.1:5000/lele时，函数应该返回lele，这就是返回的内容。如果你想看到lele作为输出，那么它是一个GET请求。如果你想看到michael作为输出，那么它是一个POST请求。