exam-backend/web/src/main/java/com/yntravelsky/common/utils/CharUtil.java

package com.yntravelsky.common.utils;

public class CharUtil {

    private static final String ZM = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    /**
     * 根据索引获取字母
     *
     * @param index
     * @return
     */
    public static String getZm(int index) {
        String[] split = ZM.split("");
        return split[index];
    }
}