groovy、java生成随机数32位

UUID.randomUUID().toString().replaceAll("-",?"");

判断有没有文件夹如果没就创建

path='H:/windows';?file='explorer.txt'?//?windows

def?entry?=?new?File("$path")

def?creafile

?if(!entry.isDirectory()){

?????def?dir=entry.mkdirs()

?????if(dir){

???????creafile?=new?File("$path/$file")

//??????if(!creafile.exists()){

//??????????creafile.createNewFile()

//??????}?

?????if(!creafile.isFile()){

?????????creafile.createNewFile()

?????}

?????}

?}else{

????println?"true"

}