// 获取需要拖动的元素
	var draggableElement = document.getElementById('STCamera201');

	// 定义变量用于存储鼠标位置和元素偏移量
	var mouseX = 0;
	var mouseY = 0;
	var offsetX = 0;
	var offsetY = 0;

	// 鼠标按下时触发的事件
	function onMouseDown(event) {
	// 记录鼠标位置和元素偏移量
	mouseX = event.clientX;
	mouseY = event.clientY;
	var rect = draggableElement.getBoundingClientRect();
	offsetX = mouseX - rect.left;
	offsetY = mouseY - rect.top;

	// 绑定鼠标移动和鼠标释放事件
	document.addEventListener('mousemove', onMouseMove);
	document.addEventListener('mouseup', onMouseUp);
}

	// 鼠标移动时触发的事件
	function onMouseMove(event) {
	// 计算新的元素位置
	var newMouseX = event.clientX;
	var newMouseY = event.clientY;
	var newLeft = newMouseX - offsetX;
	var newTop = newMouseY - offsetY;

	// 更新元素位置
	draggableElement.setAttribute('transform', 'translate(' + newLeft + ', ' + newTop + ')');
}

	// 鼠标释放时触发的事件
	function onMouseUp(event) {
	// 解绑鼠标移动和鼠标释放事件
	document.removeEventListener('mousemove', onMouseMove);
	document.removeEventListener('mouseup', onMouseUp);
}

	// 绑定鼠标按下事件
	draggableElement.addEventListener('mousedown', onMouseDown);