auto save

diy2.py

+i=3
 username = "11"
 username = "11"
 userpassword = "22"
 userpassword = "22"
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
+        i=i-1
         if name!=username:
         if name!=username:
             print("账号输入错误")
             print("账号输入错误")
             continue
             continue
@@ -11,4 +14,7 @@ while True:
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
+    else:
+        print("你没机会了")
+        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