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=i-1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name!=username:
+            print("账号不存在")
+            print("还有"+str(i)+"次")
+        if password != userpassward:
+            continue
+            print("密码错误")
+            print("还有"+str(i)+"次")
+        print("用户名和密码错误!请重新输入")
+    else:
+        print("用户未锁定")
+print("欢迎来到贝尔编程!")
\ No newline at end of file