Solution to garbled javascript alert_javascript skills

The javascript alert() function is a function for input prompts, but today when using the alert() prompt, the Chinese characters are garbled, and there is no problem with pinyin or anything else. I found a solution in the forum and share it with you below.
Solution 1:

Copy code The code is as follows:

echo '';
echo '';

Solution 1:
If you are using external calls

Copy code The code is as follows:

If js and page encoding are not counted together, garbled characters may appear. The solution is to add
charset="gb2312" to js

Copy code The code is as follows:

Problem solved.