函数名: spawnle 
 功  能: 创建并运行子程序 
 用  法: #include <process.h> 
        int spawnle(int mode, char *pathname, char *arg0,  arg1,..., argn, NULL); 
 程序例: 
/* spawnle() example */
#include <process.h> 
 #include <stdio.h> 
 #include <conio.h> 
int main(void) 
 { 
    int result; 
   clrscr(); 
    result = spawnle(P_WAIT, "tcc.exe", NULL, NULL); 
    if (result == -1) 
    { 
       perror("Error from spawnle"); 
       exit(1); 
    } 
    return 0; 
 }