The File.mkdirs method is nondestructive, so you can call it over and over again without worrying about losing existing files if the directory already exists.

mkdirs方法是无损的，所以可以多次调用该方法，而不必担心当目录已经存在时会丢失已有的文件。

youdao

Positioning: the definition and pioneer of China's Internet nondestructive testing.

定位：中国“互联网+无损检测”的定义者和开拓者。

youdao

X-ray digital imaging testing technology is a new method of nondestructive testing.

射线数字成像检测是工业无损检测的新技术。

youdao

Nondestructive editing gives you infinite freedom to experiment with sounds and effects, and it's made possible by the speed of today's computers.

CNN: Create your own music on the Mac

Best of all, sequencers provide nondestructive processing: they don't permanently apply your edits and effects to the audio tracks you've recorded unless that's what you want.

CNN: Create your own music on the Mac