save project

diy2.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
+        if name != username:
+            print("用户名错误")
+            print("温馨提示：还剩下"+str(i)+"次")
+            continue
+        if password!= userpassword:
+            print("密码错误")
+            print("温馨提示：还剩下"+str(i)+"次")            
+    else:
+        print("密码输入次数已用完。")
+        exit()
\ No newline at end of file