(持续更新中!!~)2、原来可以这样理解C语言_字符函数和字符串函数(7/12)strncpy 函数的使⽤

目录

7. strncpy 函数的使⽤

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7. strncpy 函数的使⽤

1 char * strncpy ( char * destination, const char * source, size_t num );

• Copies the first num characters of source to destination. If the end of the source C string  (which is signaled by a null-character) is found before num characters have been copied, destination is padded with zeros until a total of num characters have been written to it.

• 拷⻉num个字符从源字符串到⽬标空间。

• 如果源字符串的⻓度⼩于num，则拷⻉完源字符串之后，在⽬标的后边追加0，直到num个。