输出数组中数字对应英文字母表中对应的字母,如不在输出?,如[1,3,30] 输出：ac?
1个回答

int a = 'a';

int z = 'z';

int[] arr = { 1,3,30 };

char[] outarr = new char[arr.length];

for (int i = 0; i < arr.length; i++) {

if (arr[i]>=1&&arr[i]<=26) {//数字1-26代表从a-z

outarr[i] = (char) (arr[i] - 1 + a);

} else {

outarr[i] = '?';

}

}

System.out.println(Arrays.toString(outarr));不知LZ看的懂不

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