rpx/px转换

//rpx转px
rpxToPx(rpx) {
    const screenWidth = uni.getSystemInfoSync().screenWidth
    return (screenWidth * Number.parseInt(rpx)) / 750
}


//px转rpx
pxToRpx(px) {
    const screenWidth = uni.getSystemInfoSync().screenWidth
    return (750 * Number.parseInt(px)) / screenWidth
}