printf的格式说明符中的"F"是什么意思? [英] What does an 'F' in the Format specifier of printf mean?

问题描述

printf中的%.8Ff格式说明符是做什么的?
F是什么意思?

What does %.8Ff format specifier in printf do?
What does F mean?

推荐答案

根据手动:

F转换说明符产生 用"INF"，"INFINITY"或"NAN"代替 "inf"，"infinity"或"nan"， 分别.

The F conversion specifier produces "INF", "INFINITY", or "NAN" instead of "inf", "infinity", or "nan", respectively.

在格式字符串%.8Ff中，f被视为文字字符并打印为f.

In your format string %.8Ff, the f is treated as a literal character and printed as an f.

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