CheckNotExist check if the file exists.

CheckPermission check if the file has permission.

Comparison data hash.

Dir copies a whole directory recursively.

File copies a single file from src to dst.

* * @description: * @param {*} src * @param {*} dst * @param {string} style * @return {*} * @method: * @router: */.

get data byte length.

getFileSize get file size by path(B).

判断所给路径文件/文件夹是否存在.

Get info of block.

GetExt get the file ext.

get the hash of the data.

get the hash of the data.

* * @description:get a image's ext * @param {string} path "file path" * @return {string} ext "file ext" * @return {error} err "error info" */.

Check for duplicate file names.

GetSize get the file size.

判断所给路径是否为文件夹.

判断所给路径是否为文件.

IsNotExistMkDir create a directory if it does not exist.

IsNotExistMkDir create a directory if it does not exist.

MkDir create a directory.

MustOpen maximize trying to open the file.

NewReadLineFromEnd --.

Open a file according to a specific mode.

get prefix byte length.

RMDir remove a directory.

最终拼接.

ReadLineFromEnd --.