觀察壹組數2,4,8,16,32,64,……,尋找規律,請編程把這組數的前20個數輸出來.

int main(void)

{

int x=1;

for (int i = 1; i <= 20; i++)

{

printf("%d,",x*=2);

}

printf("\n");

//return 0; //這句也可省掉

}

輸出：

2,4,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536,131072,262144,5

24288,1048576,

Press any key to continue...