What are the two ways to return to the top of the mini program?

There are two ways to return to the top of the mini program, namely:

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1. Use the view form to return to the top

HTML:

CSS:

/* 返回顶部 */ .goTop{ height: 80rpx; width: 80rpx; position: fixed; bottom: 50rpx; background: rgba(0,0,0,.3); right: 30rpx; border-radius: 50%; }

JS:

// 获取滚动条当前位置 onPageScroll: function (e) { console.log(e) if (e.scrollTop > 100) { this.setData({ floorstatus: true }); } else { this.setData({ floorstatus: false }); } }, //回到顶部 goTop: function (e) { // 一键回到顶部 if (wx.pageScrollTo) { wx.pageScrollTo({ scrollTop: 0 }) } else { wx.showModal({ title: '提示', content: '当前微信版本过低，无法使用该功能，请升级到最新微信版本后重试。' }) } },

2. Use scroll- Return to the top in view form

CSS：

/* 返回顶部 */ .goTop{ height: 80rpx; width: 80rpx; position: fixed; bottom: 50rpx; background: rgba(0,0,0,.3); right: 30rpx; border-radius: 50%; }

JS：

data:{ topNum: 0 } // 获取滚动条当前位置 scrolltoupper:function(e){ console.log(e) let t = e.detail.scrollTop; if (t > 100 && !this.data.floorstatus) { // 避免重复setData this.setData({ floorstatus: true }); } if(t <= 100 && this.data.floorstatus){ this.setData({ floorstatus: false }); } }, //回到顶部 goTop: function (e) { // 一键回到顶部 this.setData({ topNum: this.data.topNum = 0 }); },

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