How to Switch Handwriting of Apple's 4th Generation SMS

Apple 4S can set SMS handwriting according to the following steps:

1) Turn on the phone and enter "Settings";

2) In the setting interface, enter "General" and then "Keyboard";

3) In the keyboard interface, enter "Keyboard", click "Add New Keyboard", then add "Handwriting in Simplified Chinese", save and exit;

4) Then enter the SMS editing interface, switch to handwriting mode and use handwriting input method.