无法调用类函数

本文介绍了无法调用类函数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

#!"C:\\Users\\M1032959\\AppData\\Local\\Programs\\Python\\Python36\\python.exe" import cgi, cgitb import _mysql import sys import logging print ("Content-Type: text/html") print (""" <TITLE>Bank login</TITLE> """) log_fname = "login_Details.log" logging.basicConfig(filename=log_fname, filemode='a', level=logging.DEBUG, format='%(asctime)s : %(levelname)s => %(message)s', datefmt='%Y-%m-%d %H:%M:%S' ) frmEmp = cgi.FieldStorage() try: conn = _mysql.connect("localhost", "root", "", "bank_details") logging.info('connection details:%s',conn) except Exception as e: print ("<br>Connection Error-> e</br>") logging.error('connection error: %s',e) sys.exit() class UserBankData: username = [] upassword = [] def __init__(self): username = self.username upassword = self.upassword def validateData(self): username = frmEmp.getvalue("uname") upassword = frmEmp.getvalue("upassword") # serch username and password in database sql = "SELECT uname,pass FROM login_check" conn.query(sql) login = 0 # Store the result set all_recs = conn.store_result() rec = all_recs.fetch_row() while (rec): for ename, epass in rec: ename = str(ename, 'utf-8') epass = str(epass, 'utf-8') if(username == ename and upassword == epass): login =1 logging.info("User name and Password is correct") break rec = all_recs.fetch_row() if(login == 0): logging.error("User name and Password is not correct.. Please enter proper details") print("User name and Password is not correct.. Please enter proper details") obj = UserBankData() obj.validateData() conn.close()

我的尝试： 我是python中的新手，我在python中写了代码。当我运行代码时，它没有给出任何错误，但它没有调用类函数validateData（）。

What I have tried: I am new in python and i wrote giving code in python. When i run code it is not giving any error but it not calling class function validateData().

推荐答案

可能是因为你对 sys的调用。 exit（）没有缩进，因此不是异常处理程序的一部分，而是在try / except块之后立即执行。 Probably because your call to sys.exit() is not indented, so is not part of the exception handler, but executed immediately after the try/except block.