Playwright C# -等待输入文本为空

using Microsoft.Playwright;

class Program
{
    static async Task Main(string[] args)
    {
        using var playwright = await Playwright.CreateAsync();
        await using var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        await page.GotoAsync("https://example.com");

        // 等待输入框的选择器
        var inputSelector = "input[type='text']";
        await page.WaitForSelectorAsync(inputSelector);

        // 等待输入框中的文本为空
        await page.WaitForFunctionAsync($"() => document.querySelector('{inputSelector}').value === ''");

        // 其他操作...
    }
}