冒号在结构体中既可以用作位定义也可以用作赋值

e.g.

struct element {
        char * name;
        int age;
        int stat:1;
};


struct element s[] = {
        {name: "ice", age: 37, stat : 1},
        {"gua", 7, 0}
};


        printf("%s %d %d, %s %d %d\n",
               s[0].name, s[0].age, s[0].stat&1,
               s[1].name, s[1].age, s[1].stat&1);



输出：

ice 37 1, gua 7 0