修复：在switchCameraNumber函数中添加event参数，更新HTML调用

static/js/app.js

@@ -47,7 +47,7 @@ function toggleFullscreen(cameraId) {
     }
 }
 
-function switchCameraNumber(cameraId, cameraNumber) {
+function switchCameraNumber(event, cameraId, cameraNumber) {
     const frame = document.getElementById(`frame-${cameraId}`);
     const controls = document.getElementById(`controls-${cameraId}`);
     const buttons = controls.querySelectorAll('.selector-btn');