Method left

src/main/java/com/opslab/util/StringUtil.java:261–267

截取字符串左侧指定长度的字符串 @param input 输入字符串 @param count 截取长度 @return 截取字符串

(String input, int count)

     * @return 截取字符串
     */
    public static String left(String input, int count) {
        if (isEmpty(input)) {
            return "";
        }
        count = (count > input.length()) ? input.length() : count;
        return input.substring(0, count);
    }

    /**
     * 截取字符串右侧指定长度的字符串