用这种方式导入图标和写成 background 用 class 来切换有什么最佳实践吗？

`

        resourceType: {
            audio: {
                name: '音频',
                image: require('../../assets/audio.png'),
            },
            media: {
                name: '图片',
                image: require('../../assets/img.png'),
            },
            wk: {
                name: '微课',
                image: require('../../assets/wk.png'),
            },
            vedio: {
                name: '视频',
                image: require('../../assets/wk.png'),
            },
            ppt: {
                name: 'ppt',
                image: require('../../assets/ppt.png'),
            },
            word: {
                name: 'word',
                image: require('../../assets/word.png'),
            },
            pdf: {
                name: 'pdf',
                image: require('../../assets/pdf.png'),
            },
            txt: {
                name: 'txt',
                image: require('../../assets/txt.png'),
            },
            image: {
                name: '图片',
                image: require('../../assets/img.png'),
            },
            excel: {
                name: 'excel',
                image: require('../../assets/excel.png'),
            },
            default: {
                name: 'unknown',
                image: require('../../assets/excel.png'),
            },
        },

`