源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>享学课堂</title> </head> <body> <p id="demo"></p> <script> var str = "Hello"; var arr = str.split(""); var text = ""; var i; for (i = 0; i < arr.length; i++) { text += arr[i] + "<br>" } document.getElementById("demo").innerHTML = text; </script> </body> </html>
运行结果