this.props.match.paramsthis.props.location.searchurlencoded编码字符串,需要qs解析{ pathname: '/demo/test' , query: {name: 'tom',age:18} }}>this.props.location.queryHashRouter刷新地址栏,参数丢失,BrowserRouter不会丢失参数{ pathname: '/demo/test' , state: {name:'tom',age:18} }}>this.props.location.stateHashRouter刷新地址栏,参数丢失,BrowserRouter不会丢失参数