如何读取客户端post,get的数据

<form name="input" action="/register" method="post">
Username: <input type="text" name="user">
<input type="submit" value="Submit">
</form>

from flask import Flask,render_template,request

app = Flask(__name__)


@app.route('/')
def index():
    return render_template('index.html')


@app.route('/register', methods = ['GET', 'POST'])
def register():
    print(request.method)
    print(request.form['user'])
    return 'welcome'

if __name__ == '__main__':
    app.run()

接下来是读get的数据

from flask import Flask,render_template,request

app = Flask(__name__)


@app.route('/')
def index():
    return render_template('index.html')


@app.route('/register', methods = ['GET', 'POST'])
def register():
    print(request.method)
    print(request.args.get('user'))
    return 'welcome'

if __name__ == '__main__':
    app.run()