vue实现把Ox格式颜色值转换成rgb渐变颜色值（开箱即用）

图示：

核心代码：

//将0x格式的颜色转换为Hex格式，并计算插值返回rgb颜色
Vue.prototype.$convertToHex = function (colorCode1, colorCode2, amount) {// 确保输入是字符串，并检查是否以'0x'开头let newCode1 = ''let newCode2 = ''if (typeof colorCode1 === 'string' && colorCode1.startsWith('0x')) {// 移除'0x'前缀并返回新的十六进制字符串  // 从索引2开始取子串（跳过'0x'）newCode1 = '#' + colorCode1.substring(2)}if (typeof colorCode2 === 'string' && colorCode2.startsWith('0x')) {// 移除'0x'前缀并返回新的十六进制字符串  // 从索引2开始取子串（跳过'0x'）newCode2 = '#' + colorCode2.substring(2)}// 将颜色字符串转换为RGB对象let rgb1 = {r: parseInt(newCode1.substring(1, 3), 16),g: parseInt(newCode1.substring(3, 5), 16),b: parseInt(newCode1.substring(5, 7), 16)};let rgb2 = {r: parseInt(newCode2.substring(1, 3), 16),g: parseInt(newCode2.substring(3, 5), 16),b: parseInt(newCode2.substring(5, 7), 16)};// 插值计算let r = Math.round(rgb1.r + (rgb2.r - rgb1.r) * amount);let g = Math.round(rgb1.g + (rgb2.g - rgb1.g) * amount);let b = Math.round(rgb1.b + (rgb2.b - rgb1.b) * amount);let colorRGB = `rgb(${r},${g},${b})`return colorRGB
}

使用方法：

let colorCode1 = "0x00FF2F"
let colorCode2 = "0xFEA90B"
let amount = 0.6  // 插值
console.log('获取到的rgb格式颜色值'， this.$convertToHex(colorCode1,colorCode2,amount))

案例（根据温度值数字算渐变值）：

//0x格式颜色值
let  gradientObj={16: "0x00FF2F",32: "0xFEA90B",36: "0xFF3300",-40: "0x061BFC",}
//判断数字是否小于等于对象的key值，相同就拿出对应的value值,并返回当前的rgb值changeBgColor(num) {let colorCode1 = ''let colorCode2 = ''let amount = 1let keys = Object.keys(this.gradientData)keys.sort((a, b) => {return a - b;});if (num <= parseInt(keys[0])) {colorCode1 = this.gradientData[keys[0]]colorCode2 = this.gradientData[keys[0]]} else if (num >= parseInt(keys[keys.length - 1])) {colorCode1 = this.gradientData[keys[keys.length - 1]]colorCode2 = this.gradientData[keys[keys.length - 1]]} else {for (let i = 0; i < keys.length - 1; i++) {if (num >= keys[i] && num <= keys[i + 1]) {colorCode1 = this.gradientData[keys[i]]colorCode2 = this.gradientData[keys[i + 1]]amount = (num * 1.0 - keys[i]) / (keys[i + 1] - keys[i]); // 根据温度值计算插值比例break;}}}return this.$convertToHex(colorCode1, colorCode2, amount)},

案例使用：

this.changeBgColor(30.25)   //输入值为：rgb(226, 178, 15)