Typescript+Selenium 设置浏览器默认下载路径

import { WebDriver, Builder } from "selenium-webdriver";
import { Options, ServiceBuilder, setDefaultService } from "selenium-webdriver/chrome";

export const PATH="$PATH:/path/to/chromedriver"

export class SingleInstance{
    private static instance: WebDriver;

    public static create_driver() {
        if(! this.instance) {
            // this.instance = new Builder().forBrowser("chrome").build()  //创建一个浏览器实例
            
            let chromePath: string = "./chrome/chrome.exe";
            let chromeWebdriverPath:string = "./chrome/chromedriver.exe";
            const environmentPath = 'D:\\Users\\Administrator\\Desktop\\Typescript-Selenium-PageObjecModelt\\src\\downloads';
            let downloadPath = {"download.default_directory": `${environmentPath}`, "sagebrowsing.enabled": "false" };

            setDefaultService(new ServiceBuilder(chromeWebdriverPath).build());

            this.instance = new Builder().forBrowser("chrome")
            .setChromeOptions(new Options().setChromeBinaryPath(chromePath).setUserPreferences(downloadPath))
            .build()

        }  // 如果instance为空就创建
        return this.instance
    }
}