Bash：在屏幕上显示HelloWorld;
#!/bin/bash
echo Hello World!
分类 HelloWorld 下的文章
Ruby：在屏幕上显示HelloWorld;
puts HelloWorld
Python：在屏幕上显示HelloWorld;
print("HelloWorld")
PHP：在屏幕上显示HelloWorld;
<!DOCTYPE html>
<html>
<body>
<h1>我的第一张PHP页面</h1>
<?php
echo "Hello World!";
?>
<?php phpinfo(); ?>
</body>
</html>
JS：在屏幕上显示HelloWorld;
<!DOCTYPE html>
<html>
<head>
<script>
function myFunction()
{
document.getElementById("demo").innerHTML="My HelloWorld JavaScript Function";
}
</script>
</head>
<body>
<h1>My Web Page</h1>
<p id="demo">A Paragraph.</p>
<button type="button" onclick="myFunction()">点这里</button>
</body>
</html>