save project

diy2.py

 username = "python"
-userpassword = "123456"
-i=0
-while i<10:
+userpassword = "124356"
+i=5
+while True:
         name = input("请输入用户名:")
         password = input("请输入密码:")
         # if...elif...else
+        if i>0:
             if name == username and password == userpassword:
                 print("登录成功!")
                 break
             elif name!=username and password!=userpassword:
                 print("用户名和密码错误!请重新输入")
+                print("你还有"+str(i)+"次机会")
                 continue
             elif name!=username:
                 print("用户名错误!请重新输入")
+                print("你还有"+str(i)+"次机会")
                 continue
             # elif password!=userpassword:
             else:
                 print("密码错误!请重新输入")
+                print("你还有"+str(i)+"次机会")
                 continue
-    i=i+1
+            i=i-1
 print("欢迎来到贝尔编程!")
\ No newline at end of file