save project

diy2.py

 username = "蔡徐坤"
 username = "蔡徐坤"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
-    name = input("用户名:")
-    password = input("密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    elif name != username:
-        print("用户名,重新输入")
+    if i>0:
+        name = input("用户名:")
+        password = input("密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("用户名,重新输入")
+        if
+            print("密码,重新输入")
     else:
     else:
-        print("密码,重新输入")
+        print("锁定")
+        exit()
 print("欢迎!")
 print("欢迎!")
\ No newline at end of file