Use return in the Try...catch statement in the Aardio function.

try{error    ("wrong message");    Use error to throw an error    //If the error function is in a try statement, the program will not error, but will jump out of the Try statement}catch (e) {    ///If the Try statement is followed by a catch statement, you can catch this error message E}

The above is the grammar of Try...catch;

The try statement tries to execute a block of statements and then exits the try statement block instead of interrupting the Aardio program if an error is encountered.
If you use a Catch statement block, you can catch the exception (the catch statement block is optional).

The above is a passage in the Aardio user manual.

Perhaps in the process of using try catch, we often want to return an error directly when an error occurs.

As an example:

= function () {try{        error ("1");    }     Catch (e) {        return  e;     }}console.log (Test ()); Console.pause (true);

We return this error message e If an error occurs during test execution.

But it's wrong to write like this. orzing~

A null was returned. (That is, the test function has no return value at all)

Later, after many tests, it was found that using return in a try or catch simply jumped out of the curly brace of a try or catch, so the function was not returned.

To return the catch to the error message E, you can use the following method:

= function () {    var  err;     Try {        error ("1");    }     Catch (e) {        = e;    }     return err;} Console.log (Test ()); Console.pause (true);

Define a local variable in the function body err, you can assign the error message E to the ERR variable in the catch statement;

Then return in the body of the function, so that you can return the catch to the error message!

Use return in the Try...catch statement in the Aardio function.