C# 參考傳遞 (對開發者如何運作)

class Program
{
    static void Main(string[] args)
    {
        int num = 10;
        Console.WriteLine("Before: " + num); // Output: Before: 10
        ModifyByRef(ref num);
        Console.WriteLine("After: " + num);  // Output: After: 20
    }

    // Method that modifies the integer by reference
    static void ModifyByRef(ref int x)
    {
        x = x * 2; // Modify the original value by reference
    }
}

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim num As Integer = 10
		Console.WriteLine("Before: " & num) ' Output: Before: 10
		ModifyByRef(num)
		Console.WriteLine("After: " & num) ' Output: After: 20
	End Sub

	' Method that modifies the integer by reference
	Private Shared Sub ModifyByRef(ByRef x As Integer)
		x = x * 2 ' Modify the original value by reference
	End Sub
End Class

class Program
{
    static void Main(string[] args)
    {
        int result;
        Calculate(10, 5, out result);
        Console.WriteLine("Result: " + result); // Output: Result: 15
    }

    // Method that calculates the sum of two integers and outputs the result by reference
    static void Calculate(int x, int y, out int result)
    {
        result = x + y; // Assign the sum to the out parameter
    }
}

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim result As Integer = Nothing
		Calculate(10, 5, result)
		Console.WriteLine("Result: " & result) ' Output: Result: 15
	End Sub

	' Method that calculates the sum of two integers and outputs the result by reference
	Private Shared Sub Calculate(ByVal x As Integer, ByVal y As Integer, ByRef result As Integer)
		result = x + y ' Assign the sum to the out parameter
	End Sub
End Class

using IronPdf;
using System;

class Program
{
    static void Main(string[] args)
    {
        // Create a PDF document
        var pdf = new IronPdf.HtmlToPdf();
        // HTML content to be converted to PDF
        string htmlContent = "<h1>Hello, IronPDF!</h1>";
        // Create a byte array to store the PDF content
        byte[] pdfBytes;
        // Convert HTML to PDF and pass the byte array by reference
        ConvertHtmlToPdf(pdf, htmlContent, out pdfBytes);
        // Save or process the PDF content
        // For demonstration, let's print the length of the PDF content
        Console.WriteLine("Length of PDF: " + pdfBytes.Length);
    }

    // Method that converts HTML content to PDF and stores it in a byte array by reference
    static void ConvertHtmlToPdf(IronPdf.HtmlToPdf pdfConverter, string htmlContent, out byte[] pdfBytes)
    {
        // Convert HTML to PDF and store the result in the byte array
        var pdfDoc = pdfConverter.RenderHtmlAsPdf(htmlContent);
        pdfBytes = pdfDoc.BinaryData;
    }
}

Imports IronPdf
Imports System

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Create a PDF document
		Dim pdf = New IronPdf.HtmlToPdf()
		' HTML content to be converted to PDF
		Dim htmlContent As String = "<h1>Hello, IronPDF!</h1>"
		' Create a byte array to store the PDF content
		Dim pdfBytes() As Byte = Nothing
		' Convert HTML to PDF and pass the byte array by reference
		ConvertHtmlToPdf(pdf, htmlContent, pdfBytes)
		' Save or process the PDF content
		' For demonstration, let's print the length of the PDF content
		Console.WriteLine("Length of PDF: " & pdfBytes.Length)
	End Sub

	' Method that converts HTML content to PDF and stores it in a byte array by reference
	Private Shared Sub ConvertHtmlToPdf(ByVal pdfConverter As IronPdf.HtmlToPdf, ByVal htmlContent As String, ByRef pdfBytes() As Byte)
		' Convert HTML to PDF and store the result in the byte array
		Dim pdfDoc = pdfConverter.RenderHtmlAsPdf(htmlContent)
		pdfBytes = pdfDoc.BinaryData
	End Sub
End Class