Home
JS
JS
Tryit: JAVASCRIPT
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> <h2>JavaScript 运算符</h2> <p>添加一个数字和一个字符串，返回一个字符串。</p> <p id="demo"></p> <script> var x = 5 + 5; var y = "5" + 5; var z = "Hello" + 5; document.getElementById("demo").innerHTML = x + "<br>" + y + "<br>" + z; </script> </body> </html>