首页 > TAG信息列表 > changeInputValue
bind绑定（改变this指向）
constructor(props){ super(props) this.state=store.getState() this.changeInputValue=this.changeInputValue.bind(this) this.storeChange=this.storeChange.bind(this) this.clickBtn=this.clickBtn.bind(this) store.subscribe(this.storeCannot read properties of undefined (reading 'setState')
this的指向不对，需要用bind绑定this 例如 constructor(props){ super(props) this.state=store.getState() this.changeInputValue=this.changeInputValue.bind(this)//绑定 store.subscribe(this.storeChange)//订阅 }