MIP.watch('count', function (newVal, oldVal) { fetch('http://www.chazidian.com/kaoshi/ajaxapi/?action=guanzhu&id=53688&type=2') .then(function (res) { var follows2 = MIP.getData('follows') if(follows2==1){ MIP.setData({ follows:2, title:'收藏' }) } if(follows2==2){ console.log(2) MIP.setData({ follows:1, title:'已收藏' }) } }) .catch(function (err) { console.log('数据请求失败!') }) })

三相异步电动机,无论怎样使用,其转差率始终在0~1 之间。

1、正确
2、错误
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错误

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