General text editor you can write code (emmm is type b) But this is the biggest problem is that cannot detect if there is a fault code, because want to write the code can be run on the PC, so also in PE side also cannot execute to judge whether is wrong,
If just want to write some code, simply look at what format, you can use the CSDN blogging interface, insert a piece of code, and then choose the kind of code you want to use to write, you know,
(on the phone before I download several writing python APP, but the result is not very desirable)