Closed yzw625 closed 1 month ago
使用背景：在modal模式下覆盖一层canvas元素，通过给canvas元素添加鼠标事件，如下代码： const canvas = document.createElement('canvas'); const rect = image.getBoundingClientRect(); canvas.width = rect.width; canvas.height = rect.height; canvas.style.position = 'absolute'; canvas.style.top =${rect.top}px; canvas.style.left =${rect.left}px`; canvas.style.zIndex = '9999'; canvas.style.pointerEvents = 'auto'; canvas.style.border = '1px solid red';
const canvas = document.createElement('canvas'); const rect = image.getBoundingClientRect(); canvas.width = rect.width; canvas.height = rect.height; canvas.style.position = 'absolute'; canvas.style.top =
; canvas.style.left =
// 将 Canvas 添加到 canvas 层上 image.parentElement.appendChild(canvas);`
但是给canvas元素添加mousedown监听事件，只有鼠标滚轮和右键能触发，左边不能触发，请问会是什么原因呢？
使用背景：在modal模式下覆盖一层canvas元素，通过给canvas元素添加鼠标事件，如下代码：
const canvas = document.createElement('canvas'); const rect = image.getBoundingClientRect(); canvas.width = rect.width; canvas.height = rect.height; canvas.style.position = 'absolute'; canvas.style.top =${rect.top}px; canvas.style.left =${rect.left}px`; canvas.style.zIndex = '9999'; canvas.style.pointerEvents = 'auto'; canvas.style.border = '1px solid red';// 将 Canvas 添加到 canvas 层上 image.parentElement.appendChild(canvas);`
但是给canvas元素添加mousedown监听事件，只有鼠标滚轮和右键能触发，左边不能触发，请问会是什么原因呢？