save project

diy2.py

@@ -12,6 +12,6 @@ while True:
         break
     if username!=name:
         print("用户名不存在，请重新输入")
-    if userpassword！=password:
+    if userpassword!=password:
         print("密码错误，请重新输入")   
 print("密码正确，欢迎来到贝尔编程")
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