Home > Backend Development > PHP Tutorial > paip.判断文件是否存在uapi python php java c#

paip.判断文件是否存在uapi python php java c#

WBOY
Release: 2016-06-23 13:59:05
Original
954 people have browsed it

paip.判断文件是否存在uapi python php java c#

==========uapi
file_exists
exists()
面向对象风格:  File.Exists

作者: 老哇的爪子Attilax 艾龙,  EMAIL:1466519819@qq.com
来源:http://blog.csdn.net/attilax

========python

python如何判断一个目录下是否存在某个文件??..._百度知道


使用os.path.exists()方法可以直接判断文件是否存在。

代码如下:

>>> import os

>>> os.path.exists(r'C\1.TXT')

=========php  file_exists("data.txt")

==========java

    public static boolean file_exists(String newPath) {
           File file=new File(newPath);    
            return( file.exists())  ;  
    }
    
    =====c#
    if(File.Exists(@"文件路径"))

{

//存在

}

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template