Relative path and absolute path

brief introduction ：

Absolute path ： The real path of the target file on the hard disk （ Most accurate path ）

Relative paths ： Path relative to the current file location

“./” Represents the current directory .

" . ./" Represents the previous level directory .

“/” Represents the root directory .

For example ：

1、 The file is in the current directory （ Take image file as an example , The current project file is the center ）

"./1.jpg"  or  "1.jpg"

2、 The file is in the upper directory
（1） Under the upper directory

"../1.jpg"

（2） One under the upper directory Image Under the folder

"../Image/1.jpg"

（3） Under the upper directory

"../../1.jpg"

3、 The file is in the next directory (Image1 Folder )

"./Image1/1.jpg"

4、 Root directory notation , Any page access Image Under the Image.jpg picture （ Absolute path ）

"C:/Image/1.jpg"

The end , Scatter flowers …