编程学习笔记一（"Hello,World!"）

**编程语言学习第一步：记录是最好的学习方法。

不同语言实现同一效果的语法及对比。

编辑器为VScode,代码运行为插件Code Runner，运行时间仅供参考。

该文仅用于备忘。**

1.c

#include <stdio.h>

int main(){

    printf("Hello,World!");

    return 0;

}

Hello,World!

[Done] exited with code=0 in 1.477 seconds

2.php

<?php

    echo "Hello,World!";

?>

Hello,World!

[Done] exited with code=0 in 0.076 seconds

3.go

package main

import "fmt"

func main() {

fmt.Println("Hello,World!")

}

Hello,World!

[Done] exited with code=0 in 0.752 seconds

4.js

console.log('Hello,World!');

Hello,World!

[Done] exited with code=0 in 0.139 seconds

5.ts

同上；

6.java

// 文件名与类名须一致

public class hello {

    public static void main(String[] args) {

        System.out.println("Hello,World!");

    }

}

Hello,World!

[Done] exited with code=0 in 1.281 seconds

7.python

# -*- coding: utf-8 -*-

print("Hello,World!")

Hello,World!

[Done] exited with code=0 in 0.068 seconds