save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while 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!")
+        print("欢迎来到贝尔编程!")
+        break
+
+    print("你还有"+str(i)+"次机会")
+    if name != username:
+        print("账户错了")
+        continue
+    if password != username:
+        print("密码错了")
+
+    print("请重新输入")
+print("锁定")
+exit()