It is needed for the file opening, closing, reading, and writing functions (fopen , fclose , fgets , getc , and so on), for the printf family of functions, and for the setvbuf function.

文件的打开、关闭、读和写函数(fopen 、fclose 、fgets 、getc等等)、printf函数系列和setvbuf函数都需要它。

youdao

Please note that more connections means more memory and also note that opening/closing a connection consumes CPU time.

请注意，更多的连接意味着更多的内存。 还要注意，打开/关闭连接将消耗 CPU 时间。

youdao

The coupling between the element geochemical behavior and the tectonic dynamics of the Earth the theoretical basis for understanding the geochemical response of tectonic opening-closing.

元素的地球化学行为与地球构造动力之间的耦合作用是认识构造开合地球化学响应的理论基础。

youdao

He also had to learn how to attach a clasp for opening and closing the bracelet.

VOA: special.2009.05.18

So again this curiosity, this looking up, this opening up is opposed to closing down that kids have.

所以孩子们的这种好奇，这种寻找，这种开放的心态是与封闭相反的。

哈佛公开课 - 幸福课课程节选

The lawyers also make opening and closing statements to the jury.

VOA: special.2009.08.31

It staged the opening and closing ceremonies in the 1968 summer games plus the athletics events.

FORBES: Olympic Meddle

It may also be flown during the opening and closing of Parliament by the Queen.

BBC: Northern Ireland

The opening and closing times may change so please listen to announcements during the programme.

BBC: The Eavesdrop: Terms & Conditions