save project

diy2.py

 username = "dairy"
 username = "dairy"
 userpassword = "5115"
 userpassword = "5115"
+i=3
 while True:
 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
+    if i>0:
+        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!")
+            print("欢迎来到贝尔编程!")
+            break
+        else:
+            if name!=username:
+                print("用户名错误!请重新输入")
+            if password!=userpassword:
+                print("密码错误!请重新输入")
     else:
     else:
-        if name!=username:
-            print("用户名错误!请重新输入")
-        if password!=userpassword:
-            print("密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+        print("请1万年后登录")
+        break 
+    
\ No newline at end of file