save project

diy2.py

 i=0
 i=0
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-while i<3:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    i=i+1
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break        
-    if username!=name:
-        print("用户名不存在，请重新输入！")
-        continue
-    if userpassword!=password:
-        print("密码输入有误，请重新输入！")
+while True:
+    if i<=3:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i=i+1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break        
+        if username!=name:
+            print("用户名不存在，请重新输入！")
+            continue
+        if userpassword!=password:
+            print("密码输入有误，请重新输入！")
+    else:
+        print("您的账号已被锁定，请带身份证来我司解锁")
+        exit()        
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file