是这个:

const char *chgrp()
{
    int i, ch;
    char buf[STRLEN], ans[6];

    clear();
    move(2, 0);
    prints("选择精华区的目录\n");
    oflush();

    for (i = 0;; i++) {
        if (secname[i][0] == NULL || groups[i] == NULL)
            break;
        prints("\033[32m%2d\033[m. %-20s%-20s\n", i, secname[i][0], groups[i]);
    }
    sprintf(buf, "请输入你的选择(0~%d): ", i - 1);
    while (1) {
        getdata(i + 3, 0, buf, ans, 4, DOECHO, NULL, true);
        if (!isdigit(ans[0]))
            continue;
        ch = atoi(ans);
        if (ch < 0 || ch >= i || ans[0] == '\r' || ans[0] == '\0')
            continue;
        else
            break;
    }
    sprintf(cexplain, "%s", secname[ch][0]);

    return groups[ch];
}

【 在 etnlegend (etn|若即若离·虚幻·你不是神|050249) 的大作中提到: 】
: 去读读maintain.c里面的那个chgrp()吧
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