state = {
option: 'west'
}
render(){
return(
<select>
<option value="east">East</option>
<option value="south">South</option>
<option value="west">West</option>
<option value="north">North</option>
</select>
)
}
如何在JSX中设置根据状态的默认选项?
答案 0 :(得分:1)
defaultValue
OUTPUT