save project

diy2.py

-username = "python"
-userpassword = "123456"
+s=paskodpok123e
+a = "a"
+b = "123456"
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
+    c=input("请输入用户名:")
+    d=input("请输入密码:")
+    w=input("请输入验证码s")
+    if a == c and b == d w==s:
         print("登录成功!")
+        break
+    if a!=c b==d w==s:
+        print("密码错误!请重新输入")
+    if a==c b!=d w==s:
+        print("用户名错误!请重新输入")
+    if a!=c b!=d w==s:
     print("用户名和密码错误!请重新输入")
+    if a==c b==d w!=s:
+    print("验证码错误!请重新输入")
 print("欢迎来到贝尔编程!")
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