#include <stdio.h>
int main(void) {
int i, j, k, n;
for (i = n; i >= 1; i--) {
// 第一步:先打印制表符(空格效果)
for (k = 0; k <= n - i; k++) {
printf("\t"); // 或者用 printf(" "); 更直观 }
// 第二步:再打印 hello
for (j = 1; j <= i; j++) {
}
// 第三步:一次换行
}
return 0;
}
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