save project

diy.py

@@ -3,11 +3,17 @@ userpassword = "123456"
 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!")
+    i=3
+    i-=1
+    if i>0:
+        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:")
+        elif name!=username:
+           print("用户名不存在,请重新输入:")
+        else:
+           print("密码有误,请重新输入:")
     else:
-        print("密码有误,请重新输入:")
+        print("次数已用完，拿上身份证上我司")
+    exec() 
 print("欢迎来到贝尔编程!")
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