Flask给前台发送参数

新建工程

.\test\send_arg.py

from flask import Flask, render_template
app= Flask(__name__)
@app.route('/')
def send_arg():
    arg1 = "python"
    arg2 = "RaspBerry PI"
    arg3 = "RUN"
    return render_template('arg.html',arga=arg1,argb=arg2,button=arg3)
if __name__=='__main__':
    app.run()

.\test\templates\arg.html

<h1>{{arga}}</h1>
<h1>{{argb}}</h1>
<input type=submit value={{button}}>

　　运行后后台send_arg.py会将arg1,arg2,arg3三个变量值分别传给前台的{{arga}},{{argb}},{{button}}