save project

diy2.py

+i=3
 username = "python"
+
 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!")
-        break
-    
-    if y!=y2:
-        print("你用户明错了")
-    if y!=f2:
-        print("你密码错了")
-    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:")
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        
+        if y!=y2:
+            print("你用户明错了")
+            print("你还有"+str(i)+"次机会！")
+        if y!=f2:
+            print("你密码错了")
+            print("你还有"+str(i)+"次机会")
+
+    else:
+        
+        
+        print("次数已经用尽")
+        exit ()
 print("欢迎来到贝尔编程!")
\ No newline at end of file