這是我的代碼constructor(arg) {super(arg);this.state = { content: this.props.content.contentType === "common" ? this.props.content.content.slice(0, 4) : null, listIndex: 4, problemType: 'common', events: this.props.ProfessionalProblemList, beginX: null, beginY: null, endX: null, endY: null}};
react在ie10出現 無法獲取未定義或 null 引用的屬性“content”
慕哥6287543
2018-07-22 15:59:45
