Shame to say, in fact, for vscode configuration, the writer of C/C + + only referred to the tutorial, and then copied several JSON files, but did not understand the meaning.

For this problem, we need to solve the compilation problem, so in task.json, my configuration file is as follows

in which two parameters are command and args

Command: compiler for compilation args: command for compilation

As a matter of fact, it can be seen from the familiar partners of GCC. Here we post the parameter

so we need to connect our file names. The workspace in front represents the workspace, so we only need to write our own directory name at the back, as shown in the figure of linear_ List, connect them.