c 语言可变参数函数例子

#include<stdio.h>
#include<stdarg.h>
#include<string.h>
void demo(char *msg,...)
{
va_list argp;
int arg_number=0;
char *para = msg;
va_start(argp,msg);
while(1){
if ( strcmp( para, "\0") != 0 ) {
arg_number++;
printf("parameter %d is: %s\n",arg_number,para);
}
else
break;
para = va_arg(argp,char *);
}
va_end(argp);
}
int main()
{
demo("Hello","World","\0");
system("pause");
return 0;
}