C语言函数大全-v开头-完整版.doc

C语言函数大全(v开头)函数名: vfprintf功能: 送格式化输出到一流中用法: int vfprintf(FILE *stream, char *format, va_list param);程序例:#include#include#includeFILE *fp;int vfpf(char *fmt, .)va_list argptr;int cnt;va_start(argptr, fmt);cnt=vfprintf(fp, fmt, argptr);va_end(argptr);return(cnt);int main(void)int inumber=30;float fnumber=90.0;char string4=abc;fp=tmpfile();if (fp= NULL)perror(tmpfile() call);exit(1);vfpf(%d %f %s, inumber, fnumber, string);r