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if语句
{% if user.is_logged_in() %}
<a href='/logout'>Logout</a>
{% else %}
<a href='/login'>Login</a>
{% endif %}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
{% if user %}
<a href="#"> {{ user.username}}</a>
<a href="#">注销</a>
{% else %}
<a href="#">登录</a>
<a href="#">注册</a>
{% endif %}
</body>
</html>#encoding:utf-8
from flask import Flask,render_template
app = Flask(__name__)
@app.route('/<is_login>/')#127.0.0.1:5000/参数
def index(is_login):
if is_login=='1':
user={
'username':u'二狗',
'age':18
}
return render_template('index.html',user=user)
else:
return render_template('index.html')
if __name__ == '__main__':
app.run()