如何自定义实现类似c++ printf的功能

要在其他编程语言中实现类似C++ printf 的功能，您可以使用字符串格式化和变量插值

1. Python:

def custom_printf(format_string, *args):     print(format_string % args)  custom_printf("Hello, %s! You are %d years old.", "Alice", 30) 

2. Java:

public class CustomPrintf {     public static void main(String[] args) {         customPrintf("Hello, %s! You are %d years old.", "Alice", 30);     }      public static void customPrintf(String format, Object... args) {         System.out.printf(format, args);     } } 

3. JavaScript (Node.js):

function customPrintf(format, ...args) {     console.log(format.replace(/%[sd]/g, (match) => {         const value = args.shift();         return match === '%s' ? value : Number(value);     })); }  customPrintf("Hello, %s! You are %d years old.", "Alice", 30); 

4. C#:

using System;  class Program {     static void Main()     {         CustomPrintf("Hello, {0}! You are {1} years old.", "Alice", 30);     }      static void CustomPrintf(string format, params object[] args)     {         Console.WriteLine(format, args);     } } 

这些示例展示了如何在不同编程语言中实现类似C++ printf 的功能。请注意，每种语言都有自己的特定方法来处理字符串格式化和变量插值。