import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.io.IOException;public class DirectoryCreation{ public static int count=0;
public static void main(String[] args){
try{
Path path=Paths.get("E:/NewDirectoryByJava");
if(Files.notExists(path))
Files.createDirectory(path);
else{
path=Paths.get("E:/NDByJava/Something", String.valueOf(count));
Files.createDirectories(path);
count++;
}
}catch(IOException e){
e.printStackTrace();
}
}}如题,把上面的代码编译之后,无论运行几次,系统里面都只有E:/NDByJava/Something/0和E:/NewDirectoryByJava这两个文件夹,而不会生成E:/NDByJava/Something/1的文件夹,这到底是为什么??
用for循环让中间代码运行多次的话,应该就有1文件夹啦.