今日C掌握static关键字修饰局部变量时 即使局部变量没有赋初值 也会默认为0（一般情况下编译器是不会对局部变量赋初值 除非自己赋值）例如：void nostatic(){ int n = 10; printf("%d\n", n); n++; printf("%d\n", n);}void mystatic(){ static int n = 10; printf("%d\n", n); n++; printf("%d\n", n);}int main(){ nostatic(); printf("--------------------\n"); mystatic(); printf("--------------------\n"); nostatic(); printf("--------------------\n"); mystatic();}可知打印的出来的结果是1011------------------1011------------------1011------------------1112