save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=5
 while True:
+    if i>0:
+        i-=1
         name = input("请输入用户名:")
         password = input("请输入密码:")
         if name == username and password == userpassword:
@@ -8,10 +11,13 @@ while True:
             break
         if name != username: 
             print("用户名错误,请重新登录")
-        continue
-    if password != userpassword:
+            print("剩下"+str(i)+"尝试机会")
+        elif password != userpassword
             print("密码错误,请重新登录")
-    print("用户名和密码错误!请重新输入")
+            print("剩下"+str(i)+"尝试机会")
+    else:
+        print("输入次数以超出上限，请拿生分证来我司解锁!")
+        exit()
 print("欢迎来到贝尔编程!")