用automake，autoconf生成Makefile文件

#ifdef __cplusplus extern "C" { #endif #include <stdio.h> #include "swap.h" #include "myadd.h" int main() { int a = 10; int b = 20; int sum = 0; printf("a is: %d, b is: %d\n",a,b); printf("start to run swap(a,b)\n"); swap(&a,&b); printf("after swap,a is: %d, b is: %d\n",a,b); printf("start to run myadd(a,b)\n"); sum = myadd(a,b); printf("a+b=%d\n",sum); printf("programe return successfully!\n"); } #ifdef __cplusplus } #endif