scanf与sprintf

scanf: 从字符串中拆分出想要的类型

sprintf: 把各种类型的东西合成一个字符串

#include 

int main(void)
{
    char *buf = "1:23:abc";
    int a, b;
    char c[5];
    char d[10];

    sscanf(buf, "%d:%d:%s", &a, &b, c);
    printf("a = %d\n", a);
    printf("b = %d\n", b);
    printf("c = %s\n", c);
    snprintf(d, 10, "%d,%d,%s", a, b, c);
    printf("d = %s\n", d);

    return 0;
}