就很烦啊。

模拟器里面的Touch的screenX和screenY是针对整个windows屏幕而非模拟器的位置。

代码：

let begin_touch = res.changedTouches[0];

console.log("end_x", begin_touch.screenX, "end_y", begin_touch.screenY,"width:",this.page.screen.screenWidth,"height:",this.page.screen.screenHeight)