A very good example for this is the situation where you want to gain a handler to a file, read data from the file and the close the file handler.

一个很好的例子是文件处理，你需要获取一个文件句柄，从文件中读取数据，然后关闭文件句柄。

youdao

A very good example for this is the situation where you want to gain a handler to a file, read data from the file and the close the file handler.

一个很好的例子是文件处理，你需要获取一个文件句柄，从文件中读取数据，然后关闭文件句柄。

youdao