1.运行程序

package com.zhiyou100;import org.slf4j.Logger;import org.slf4j.LoggerFactory;public class Slf4j {		public static Logger log = LoggerFactory.getLogger(Slf4j.class);	public static void main(String[] args) {		log.debug("用户 [{}]. 删除了角色[{}].", "张三", "普通用户");	}}

2.运行结果