Javascript用数据替换if或switch的解决方案

//文本标签颜色;
function getBgCor(cat) {
    var baColors = [
        '#C1232B', '#B5C334', '#FCCE10', '#27727B', '#FE8463',
        '#F3A43B', '#60C0DD', '#D7504B', '#C6E579', '#F4E001',
        '#F0805A', '#26C0C0', '#ff7f50', '#87cefa', '#da70d6',
        '#32cd32', '#6495ed', '#ff69b4', '#ba55d3', '#cd5c5c',
        '#ffa500', '#40e0d0', '#1e90ff', '#ff6347', '#7b68ee',
        '#00fa9a', '#ffd700', '#6b8e23', '#ff00ff', '#3cb371'
    ];
    return baColors[cat];
}