// pages/API/screen-brightness/screen-brightness.js Page({ data: {}, onUserCaptureScreen() { wx.showToast({ title: '开始监听', }) wx.onUserCaptureScreen(() => { wx.showToast({ title: '用户屏幕截图', }) }) }, offUserScreenCapture() { wx.showToast({ title: '取消监听', }) wx.offUserCaptureScreen(); } })