Question

我正在编写一个脚本，该脚本将在bash shell上运行命令并打印出结果。我将从文件A.txt中读取

A.txt

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.interactions.Actions;

public class Playground
{
    public static void main(String[] args)
    {
        WebDriver driver = new ChromeDriver();
        driver.get("https://smnbbrv.github.io/angular-sortablejs-demo/multiple-lists");

        WebElement draggable = driver.findElement(By.xpath("/html/body/app-root/div/app-multiple-lists/div[1]/div[1]/ul/li[2]"));
        WebElement dropable = driver.findElement(By.xpath("/html/body/app-root/div/app-multiple-lists/div[1]/div[2]"));

        // DRAW BORDERS AROUND TO MAKE SURE WE SELECT CORRECT OBJECTS
        drawBorder(driver, "/html/body/app-root/div/app-multiple-lists/div[1]/div[1]/ul/li[2]");
        drawBorder(driver, "/html/body/app-root/div/app-multiple-lists/div[1]/div[2]");

        // TRY USING SELENIUMS ACTION CLASS
        Actions actions = new Actions(driver);
        actions.clickAndHold(draggable).moveToElement(dropable).release().build().perform();

        // TRY AGAIN USING JAVA SCRIPT 
        dragAndDrop(driver, draggable, dropable);
    }

    public static void drawBorder(WebDriver driver, String xpath)
    {
        WebElement element_node = driver.findElement(By.xpath(xpath));
        JavascriptExecutor jse = (JavascriptExecutor) driver;
        jse.executeScript("arguments[0].style.border='3px solid red'", element_node);
    }

    public static void dragAndDrop(WebDriver driver, WebElement from, WebElement to)
    {
        JavascriptExecutor js = (JavascriptExecutor) driver;

        js.executeScript("function createEvent(typeOfEvent) {\n" + "var event =document.createEvent(\"CustomEvent\");\n"
                + "event.initCustomEvent(typeOfEvent,true, true, null);\n" + "event.dataTransfer = {\n" + "data: {},\n"
                + "setData: function (key, value) {\n" + "this.data[key] = value;\n" + "},\n"
                + "getData: function (key) {\n" + "return this.data[key];\n" + "}\n" + "};\n" + "return event;\n"
                + "}\n" + "\n" + "function dispatchEvent(element, event,transferData) {\n"
                + "if (transferData !== undefined) {\n" + "event.dataTransfer = transferData;\n" + "}\n"
                + "if (element.dispatchEvent) {\n" + "element.dispatchEvent(event);\n"
                + "} else if (element.fireEvent) {\n" + "element.fireEvent(\"on\" + event.type, event);\n" + "}\n"
                + "}\n" + "\n" + "function simulateHTML5DragAndDrop(element, destination) {\n"
                + "var dragStartEvent =createEvent('dragstart');\n" + "dispatchEvent(element, dragStartEvent);\n"
                + "var dropEvent = createEvent('drop');\n"
                + "dispatchEvent(destination, dropEvent,dragStartEvent.dataTransfer);\n"
                + "var dragEndEvent = createEvent('dragend');\n"
                + "dispatchEvent(element, dragEndEvent,dropEvent.dataTransfer);\n" + "}\n" + "\n"
                + "var source = arguments[0];\n" + "var destination = arguments[1];\n"
                + "simulateHTML5DragAndDrop(source,destination);", from, to);
    }
}

MyCode

AAA:BBB
CCC:DDD
AAA:FFF

我面临一个奇怪的问题，print命令仅适用于最后一行，其余命令将在下一行打印'％'字符，但对于最后一行则完全按预期工作。

因此，仅对A.txt的最后一行正确评估了$ result变量，而其余2行则没有任何输出。

有人可以建议我在这里做错什么吗

谢谢您的时间

Answer 1

您没有删除行尾。通常，可以执行以下操作：

chomp($line);

但是，您正在unix系统上读取Windows文本文件（以CRLF结尾的行）（以LF结尾的行）。转换文件（例如，使用dos2unix），或使用以下命令代替chomp：

$line =~ s/\s+\z//;

Perl问题，％字符

1 个答案: