问题
Does the iPad simulator support multitouch input (3 or more fingers)?
回答1:
Not on a default setup (you can do two fingers by holding down opt/shift, but not three). There are some third party tools that will let you do this (http://www.vimov.com/isimulate/).
As a general rule, you should be testing on hardware where possible, because there are some pretty big differences between simulator and device.
来源：https://stackoverflow.com/questions/4633908/ipad-simulator-multitouch-input