A杨国璇的博客

记旋转角为β.α 和 β计算采用弧度制parseNumber作用：将数值浮点到8位小数const parseNumber = (num) => { return parseFloat(num.toFixed(8));};计算的核心利用外角进行计算if (!target || Object.keys(target).length !== 5) return {x: 0, y: 0};const { left, top, rotation, width, height .

屏蔽节点的鼠标点击选择文字的方法-webkit-user-select: none;-moz-user-select: none;-o-user-select: none;-ms-user-select: none;

‘React’ must be in scope when using JSX react/react-in-jsx-scope报错：在头部引入 import React from 'react’即可