auto save

2-4-diy4-2.py

+i=3
+username = "python"
+userpassword = "123456"
+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
+        elif name != username:
+            print("用户名不存在,请重新输入!")
+            print("温馨提示:你还有"+str(i)+"次登入机会")
+        else:
+            print("密码输入有误,请重新输入!")
+            print("温馨提示：你还有"+str(i)+"次登入机会")
+    else:
+        print("你的账户已经被锁定")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file

diy2.py

@@ -6,5 +6,9 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    print("用户名和密码错误!请重新输入")
+    if name!=username:
+        print("你输入的用户名错误")
+        continue
+    if password!=userpassword:
+        print("你输入的密码错误")
 print("欢迎来到贝尔编程!")
\ No newline at end of file