如果其中某个不存在，那么我还是不打印它的名称为好，这样我可以区别出是没有这个属性还是它被设置成了空字符串。

If one of them is missing, I'll suppress printing its name as well, so I can tell the difference between it being absent and being set to an empty string.

youdao

如果其中某个不存在，那么我还是不打印它的名称为好，这样我可以区别出是没有这个属性还是它被设置成了空字符串。

If one of them is missing, I'll suppress printing its name as well, so I can tell the difference between it being absent and being set to an empty string.

youdao