save project

diy2.py

+i = 3
 name = "python"
 d = "12345"
 while True:
+    if i > 0:
         name1 = input("请输入用户名")
         d1 = input("请输入密码")
+        i -= 1
         if name1 == name and d1 == d:
             print("登陆成功")
             break
         if name1 != name :
             print("用户名输入错误")
+            print("您还有"+str(i)+"次机会")
             continue
         if d1 != d :
             print("密码输入错误")
+    else:
+        print("次数已经耗尽！")
+        exit()
 print("欢迎来到编程世界")        
\ No newline at end of file