[PLSQL Developer] PLSQL Developer SQL Editor garbled, plsqldeveloper

[PLSQL Developer] PLSQL Developer SQL Editor garbled, plsqldeveloper
[Problem] We often write various statements in the SQL window of PLSQL Developer. To save these statements, you can save them as a text file or copy them and paste them into a Word file, the advantage of storing the statement in a Word file is that the statement retains the original format and can clearly distinguish keywords and constants. However, when a statement contains Chinese characters, the Chinese characters in the statement pasted into the Word file cannot be displayed.

[Analysis] This is because the character set in the SQL editing window is not a Chinese character set. You can change this character to integrate Chinese.
[Solution]
1. Click Preferences under the Tools menu...

2. Click Fonts under the User Interface, and then click Select... under the Editor on the right.

3. In the pop-up window, select a Chinese font, such as, and then select the character set CHINESE_GB2312. OK.

Plsql developer garbled

Find the following solutions elsewhere:
1. Set the key value of HKEY_LOCAL_MACHINE-> SOFTWERE-> ORACLE-> HOME0-> NLS_LANG in the Registry to Japan. In addition, all fonts under Tools> Preferences> font of Plsql developer are changed to Japanese.
I don't know whether to use it or not. I have never used a Japanese system ~~

The Chinese data entered by plsql developer becomes garbled

If you don't understand what you mean, you can see that your graph is an insert statement, which means that you are garbled before the insert statement. Do you first write the insert statement in the win editor and paste it into unix? If this is the case, you should use ftp to send this script.