save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-i=3
 while True:
 while True:
-    if i>0:
-        name = input("请输入用户名:")
-        password = input("请输入密码:")
-        i-=1
-        if name == username and password == userpassword:
-            print("登录成功!")
-            break
-        if name != username:
-            print("用户名错误")
-            continue
-        if password != userpassword:
-            print("密码错误")
-    else:
-        print("账号没了")
-        exit()  
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        print("登录成功!")
+        break
+    if name != username:
+        print("用户名错误")
+        continue
+    if password != userpassword:
+        print("密码错误")  
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
\ No newline at end of file