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//801-4 | |
#include "stdafx.h" | |
#include<stdio.h> | |
#include<stdlib.h> | |
int main() | |
{ | |
int i, j; | |
for (i = 0; i<5; i++) {//從0開始,一直到4 共會出現0,1,2,3,4 | |
for (j = 0; j<i; j++)printf(" ");//從0開始,一直到i的前一個 | |
for (j = 0; j<5 - i; j++)printf("*");//列印出*號 | |
printf("\n");//換行 | |
} | |
system("PAUSE");//停住等待使用者按下任意一個按鍵 | |
return 0;//跳出 | |
} | |
/* | |
第9行 | |
for(j=0;j<i;j++)printf(" ") | |
i=0 , j=0 , 不執行(不印出全形空白 | |
i=1 , j=0 , 0 列印出1個全形空白 | |
i=2 , j=0 , 0 1 列印出2個全形空白 | |
i=3 , j=0 , 0 1 2 列印出3個全形空白 | |
i=4 , j=0 , 0 1 2 3 列印出4個全形空白 | |
第10行 | |
for(j=0;j<5-i;j++)printf("*") | |
i=0 , 5-0=5 , j= 0 1 2 3 4 列印出5個* | |
i=1 , 5-1=4 , j= 0 1 2 列印出4個* | |
i=2 , 5-2=3 , j= 0 1 2 列印出3個* | |
i=3 , 5-3=2 , j= 0 1 列印出2個* | |
i=4 , 5-4=1 , j= 0 列印出1個* | |
因為前面已經有空白,所以*號會在空白後面出現 | |
*/ |
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