class KeyWordModel{
key = 'q'
maxLength = 10
getHistory(){
const words = wx.getStorageSync(this.Key)
if(!words){
return []
}
return words
}
addToHistory(keyword){
let words = this.getHistory()
const has = words.include(keyword)
if(!has){
const length = words.length
if(length>=this.maxLength){
words.pop();
}
words.unshift(keyword)
wx.setStroageSync(this.key,words)
}
}
}
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