C库函数 - wctomb() C库函数 - mbtowc() C库函数 - memchr() C库函数 - wctomb() #include <stdio.h> #include <stdlib.h> int main () { int i; wchar_t wc = L'a'; char *pmbnull = NULL; char *pmb = (char *)malloc(sizeof( char )); printf("Converting wide character:\n"); i = wctomb( pmb, wc ); printf("Characters converted: %u\n", i); printf("Multibyte character: %.1s\n", pmb); printf("Trying to convert when target is NULL:\n"); i = wctomb( pmbnull, wc ); printf("Characters converted: %u\n", i); /* this will not print any value */ printf("Multibyte character: %.1s\n", pmbnull); return(0); } C库函数 - mbtowc() C库函数 - memchr()