HarmonyOS 如何区分手指(Finger)和手写笔(Pen)

问题一：可以用，只是要改下代码；首先获取到let fingerType: SourceTool = event.sourceTool;这里获取到的是枚举的"Value"，是number类型的值；无法和SourceTool.Unknown做等号判断；可以通过以下代码查询到SourceTool所有的枚举key/Value。

const enumKeys = Object.keys(SourceTool).filter(key => isNaN(Number(key)));
const enumValues = enumKeys.map(key => SourceTool[key as keyof object]);
console.log('Keys: ', enumKeys);
console.log('Values: ', enumValues);
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打印如下：

Keys: Unknown,FINGER,PEN,MOUSE,TOUCHPAD,JOYSTICK 
Values: 0,1,2,7,9,10
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此时使用value去判断，所以修改代码如下：

if (fingerType === 1) {
  console.log("dianju_手指_down")
} else if (fingerType == 2) {
  console.log("dianju_手写笔_down")
} else if (fingerType == 0) {
  console.log("dianju_未知物_down")
} else if (fingerType == 7) {
  console.log("dianju_鼠标_down")
} else if (fingerType == 9) {
  console.log("dianju_触摸板_down")
} else if (fingerType == 10) {
  console.log("dianju_操纵手柄_down")
}
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