请尝试以下操作：
package PageObjects;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.webdriverwait;
public class SignIn {
private static WebElement element = null;
public static WebElement SignIn_click(WebDriver driver) throws InterruptedException {
element = driver.findElement(By.xpath("id('J_SC_header')/header/div[2]//span[1]/a[@data-val='ma_signin']"));
while (!isDisplayed(element))
{
Thread.sleep(3000);
System.out.println("Element is not visible yet");
}
return element;
}
public static boolean isDisplayed(WebElement element) {
try {
if(element.isDisplayed())
return element.isDisplayed();
}catch (NoSuchElementException ex) {
return false;
}
return false;
}
}
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