1、switch 语句会使用恒等计算符(===)进行比较:以下实例由于类型不一致不会执行 alert 弹窗：1 var x = "10";2 switch(x) {3 case 10: alert("Hello");4 }2、字符串中使用反斜杠(\)换行，不能直接回车换行。1 var x = "Hello \2 Worl......
文章浏览阅读816次。通过umi配置项chainWebpack添加了`html-loader`,运行项目的终端报错`TypeError: this.getOptions is not a function`_html-loader this.getoptions is not a function...
文章浏览阅读2.2k次。package text;import java.util.Date;public class UserVO { private int id; private String userName; private int age; private int sex; private Date createDt; public int ge..._定义实体类this...
文章浏览阅读4.5k次，点赞5次，收藏11次。环境cetnos 图形界面环境问题启动Jenkins后报错AWT is not properly configured on this server. Perhaps you need to run your container with “-Djava.awt.headless=true”? See also: https://jenkins.io/redirect/troubleshooting/java.awt.......
文章浏览阅读286次。自从开始看scala的Parser相关的源码以来，我越来越觉得scala中很多处理方法就像是用黑魔法在与编译器打交道。不变成JVM上的c++誓不罢休？ 看Programming in Scala 源码 33.6abstract class Parser[+T] ... { p =>... def ~ [U......
