Hello World

C

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#include<stdio.h>
int main()
{
	printf("hello world\n");
	return 0;
}

C++

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#include<iostream>
using namespace std;
int main()
{
	cout << "hello world" << endl;
	return 0;
}

java

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public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

python

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print("hello world")

html+CSS+JS

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>hello world</title>
    <style>
        #hello{
            color: red;
        }
    </style>
</head>
<body>
    <div id="hello">hello world</div>
    <script>
        console.log("hello world");
    </script>
</body>
</html>

shell

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echo "hello world"

HDFS

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hdfs dfs -put xxx

Vue

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<template>
  <img alt="Vue logo" src="./assets/logo.png">
  <HelloWorld msg="Welcome to Your Vue.js App"/>
</template>

<script>
import HelloWorld from './components/HelloWorld.vue'

export default {
  name: 'App',
  components: {
    HelloWorld
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

SpringBoot

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@GetMapping("/hello")
    public String hello(){
        return "HelloWorld";
    }

mysql

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mysql -u root -p
select * form tables;

Arkts

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@Entry
@Component
struct Index {
  @State message: string = 'Hello World'
  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
      }
      .width('100%')
    }
    .height('100%')
  }

}

Scala

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object HelloWorld {
  def main(args: Array[String]): Unit = {
    println("hello scala")
  }
}

#C++ #C #java #python #html+css+js #shell #scala
Hello World
https://leaf-domain.gitee.io/2030/12/31/hello-world/
作者
叶域
发布于
2030年12月31日
许可协议