Question

我想按一下按钮标记此选项的按钮：

<div aria-controllers="my-list"> Press for more information </div>

我应该使用哪种来自R selenium？

这就是我的尝试：

webElem1 <- remDr$findElement(using = 'aria-controllers', value = 'my-list')
webElem1$sendKeysToElement(list('R', key = 'enter'))

另外，如果我使用它，我收到以下错误：

webElem <- remDr$findElement(using = 'aria-controllers', value = "my-list")
Error in match.arg(using) : 
  'arg' should be one of “xpath”, “css selector”, “id”, “name”, “tag name”, “class name”, “link text”, “partial link text”

Answer 1

我不知道R，但我认为你需要的是

// import preact
import { h, render, Component } from 'preact';
// import stylesheets for ipad & button
import style from './style';
import style_iphone from '../button/style_iphone';
// import jquery for API calls
import $ from 'jquery';
// import the Button component
import Button from '../button';

export default class Iphone extends Component {
//var Iphone = React.createClass({

// a constructor with initial set states
constructor(props){
    super(props);
    // temperature state
    this.state.temp = "";



}



componentWillUpdate(){
    this.fetchWeatherData();
}
    // a call to fetch weather data via wunderground
    fetchWeatherData = () => {
        // API URL with a structure of : 
ttp://api.wunderground.com/api/key/feature/q/country-code/city.json
        var url = 
"http://api.wunderground.com/api/mykey/conditions/q/UK/London.json";
    $.ajax({
        url: url,
        dataType: "jsonp",
        success : this.parseResponse,
        error : function(req, err){ console.log('API call failed ' + err); }
    })

}


// the main render method for the iphone component
render() {
    // check if temperature data is fetched, if so add the sign styling to the page

    const tempStyles = this.state.temp ? `${style.temperature} ${style.filled}` : style.temperature;
    document.write(this.state.locate);
    // display all weather data

    return (

        <div class={ style.container }>
            <div class={ style.header }>
                <div class={ style.city }>{ this.state.locate }</div>
                <div class={ style.conditions }>{ this.state.cond }</div>
                <span class={ tempStyles }>{ this.state.temp }</span>
            </div>
            <div class={ style.details }></div>
            <div class= { style_iphone.container }>
                { this.state.display }
            </div>
        </div>
    );
}

parseResponse = (parsed_json) => {
    var location = parsed_json['current_observation']['display_location']['city'];
    var temp_c = parsed_json['current_observation']['temp_c'];
    var conditions = parsed_json['current_observation']['weather'];

    // set states for fields so they could be rendered later on
    this.setState({
        locate: location,
        temp: temp_c,
        cond : conditions
    });
}

第一个参数是定位器的类型，这就是为什么你得到错误列出所有定位器类型，如'id'，'css selector'等。我选择了一个CSS选择器因为我认为最符合你的方式试图找到元素。

第二个参数是定位器本身。在这种情况下，CSS选择器。

您可能应该花一些时间查看文档。

https://cran.r-project.org/web/packages/RSelenium/vignettes/RSelenium-basics.html#search-using-css-selectors

https://www.rdocumentation.org/packages/seleniumPipes/versions/0.3.7/topics/findElement

根据操作按下按钮

1 个答案: