'return'外部函數錯誤 - python

Question

在第7行中，我得到了錯誤'return'外部函數，我嘗試了縮進，這不是問題，所以我不確定是什麼？

import psycopg2 
    from flask import Flask, render_template, request 
    app = Flask(__name__) 
    def getConn(): 
     connStr=("dbname='----' user='----' password= '----' ") 
    conn=psycopg2.connect(connStr) 
    return conn 
    @app.route('/') 
    def home(): 
     return render_template('part3.html') 
    @app.route('/displayStudent', methods =['GET']) 
    def displayCustomer(): 
     @app.route('/addStudent', methods =['GET', 'POST']) 
     def addLeadCustomer(): 
      if __name__ == "__main__": 
       app.run(debug = True) 

Answer 1

嘗試使用這樣的：

import psycopg2 
from flask import Flask, render_template, request 

app = Flask(__name__) 
def getConn(): 
    connStr=("dbname='----' user='----' password= '----' ") 
    conn=psycopg2.connect(connStr) 
    return conn 

@app.route('/') 
def home(): 
    return render_template('part3.html') 

@app.route('/displayStudent', methods =['GET']) 
def displayCustomer(): 
    pass 

@app.route('/addStudent', methods =['GET', 'POST']) 
def addLeadCustomer(): 
    if __name__ == "__main__": 
     app.run(debug = True) 

我希望這會工作。謝謝。