c - 数组理解:

Question

int m,digit[100],i=0, n = 15;
while(n)
{
    m = n%2;
    digit[i] = "0123456789abcdefghijklmnopqrstuvwxyz"[m];
    n = n/2;
}

我不明白什么是digit[i] = "0123456789abcdefghijklmnopqrstuvwxyz"[m];

Answer 1

digit[i] ="0123456789abcdefghijklmnopqrstuvwxyz"[m]; 是 0123456789abcdefghijklmnopqrstuvwxyz 的第 m 个字母。