How to enter comma using Google Pinyin input method:
Method one:
The comma is the right slash on the keyboard, and its specific location is the key above enter. Below the delete key. At the same time, to enter a comma, you need to press the right slash key in the half-width and Chinese punctuation mode using Google Input Method to create a comma!
Method two:
After switching to Google Pinyin, move the cursor to the text and press any character. Google Pinyin will pop up the word selection menu. Right-click the word selection menu. When the dialog box pops up, select "Switch to Chinese Punctuation". Press the " " key to type a comma.
Google Pinyin Input Method