Javascript鼠标事件处理程序在我的android触控手机上无法正常运行

I am working on creating a scratch card script in javascript mouse event handlers is working properly on pc but it is not on my touch phone. on pc , i hold down the left mouse button and move it around to scratch the card. on touch phone , It scratches only if i keep touching and releasing my finger on the phone screen.I am working on creating a scratch card script