auto save

diy2.py

+i=5
 username = "萌虎"
 userpassword = "5"
 while True:
-    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
-    elif name !=userpassword:
-        print("用户名不存在，请重新输入")
-        continue
-    elif name !=userpassword:
-        print("用户名和密码错误!请重新输入")
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=i
+        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")
+            continue
+        elif name !=userpassword:
+            print("密码错误")
+    else:        
+        print("你还有"+ str(i)+"次机会")
+        print("您的账户已停用!请重新办理")
+        exit()
 print("欢迎来到贝尔编程!")
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