export function processScroll (_this) {
let _self = _this
let scrollbarEl = _this.$parent.wrap
scrollbarEl.onscroll = function() {
if(scrollbarEl.scrollTop > 170) {
_self.prostyle = {
position: 'fixed',
width: '100%',
maxWidth: '810px',
top: 0
}
} else {
_self.prostyle = {
}
}
}
}
在监测滚动的位置时候 做样式的修改