C语言函数实现 | 01-取出字符数组第n个与第n+1个空格之间的字符串

Posted 2021-09-07 Neutionwei

int get_str_from_space(char dest[], const char src[], int n)
{
	int i, j, k = 0;

	for (i = 0; i < 1024; i++) {
		if ((src[i] == ' ')) {
			k++;
			if (k == n) {
				for (j = 0; src[i+1+j] != ' '; j++) {
					dest[j] = src[i+1+j];
				}
			}
		}
		if (k == n) {
			dest[j] = '\\0';
			break;
		}
	}

	if ((k == 0) && (k == 1)) {
		return -1;
	}
	return 0;
}

注意结尾添加\\0字符串结束符号！