app = Flask(__name__)  # 初始化flask对象


@app.route('/')
def index():
    return 'Hello World!                                '


if __name__ == '__main__':
    app.run(debug=True, host='127.0.0.2', port=8888)

@app.route('/user/<int:id>')
def index1(id):
    if id==1:
        return "哞哞哞哞"
    else:
        return "咩咩咩咩咩咩咩"

之前是用url来找到函数，现在用函数找到url

@app.route('/hello/')
def index():
    return 'Hello World!'   

@app.route('/')
def url1():
    u=url_for('index')
    return u

@app.route('/idname/')
def test1(int:id,name):
    return 'id=%s1,name=%s2' % id % name
	
@app.route('/')
def url1():
    u=url_for('test1',id=10086,name='sssssssss')#
    return '%s' % u

@app.route('/hello/')
def index():
    print('请先登陆')
    url1=url_for('test2')
    return redirect(url1)

@app.route('/login')
def test2():
    return "这是用户登陆界面"

输入根目录 直接进入login