通过Flask，实现一个静态的小Web应用
from flask import Flask
from flask import request
app = Flask(__name__)
@app.route('/',methods=['GET','POST'])
def home():
return '<h1>Welcome...</h1>'
@app.route('/signin',methods=['GET'])
def sign_form():
return '''<form action="/signin" method="post">
<p><input name="username"></p>
<p><input name="password" type="password"></p>
<p><button type="submit">Sign In</button></p>
</form>'''
@app.route('/signin',methods=['POST'])
def signin():
# 获取表单的数据，判断逻辑
if request.form['username'] == 'admin' and request.form['password'] == 'password':
return '<h3>Hello,admin</h3>'
return '<h3>Wrong Username or Password!!!</h3>'
if __name__ == '__main__':
app.run(debug=True)
