react 从props上获取的值怎么回填到select

2025-05-17 12:28:28
推荐回答(1个)
回答1:

r _val = ""; /*保存上次的值*/ var R_header = React.createClass({ getInitialState:function(){ return {info:""}; }, changeVal:function(e){ var val = e.target.value; if(isNaN(val)){ val = _val; this.setState({"info":"只能输入数字!...