private static String beforeBh;
private static String beforeNum;
public static String codeGenerate() {
Date now = new Date();
String behind = now.getTime()+"";
if(beforeBh==null) {
beforeBh = behind;
} else if(beforeBh.equals(behind)) {
behind = behind +beforeNum;
beforeNum++;
} else {
beforeBh = behind;
beforeNum = 0;
}
return behind;
![[Web-Frontend] Node.js-Schnellstart](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
