save project

diy.py

+usename="python"
+usepassword="123456"
+i=3
+while True:
+    if i>0
+        name = input("请输入用户名")
+        password = input("请输入密码")
+    i=i-1
+        if usename==name and usepassword==password
+            print("登录成功！")
+            break
+        if usename!=name:
+            print("用户名输入错误，请重新输入")
+            continue
+        if usepassword!=password:
+            print("密码输入错误，请重新输入")
+else :
+    print("您的账号已被锁定，请到我司解锁")
+print("欢迎来到贝尔编程")
\ No newline at end of file