D11117233蘇詩涵JavaScript執行輸入字串再反向輸出

JavaScript輸出結果

蘇詩涵輸入字串:

JavaScript程式碼

<p>蘇詩涵輸入字串:<input id="in" type="text" width="80" /></p>
<p><input onclick="f()" type="button" value="蘇詩涵執行JavaScript" /></p>
<p id="out"></p>
<script>
function f(){
  var a = document.getElementById("in").value;/*取得id=in的文字*/
  var b = "源字串: "+a+"<br>長度是:"+a.length+"<br>反串是: ";
  var c = "";
  for (var i = 0; i < a.length; i++)
    c = a.slice(i,i+1) + c ;
  b = b +"<font size=7>"+ c+"</font>";
  document.getElementById("out").innerHTML = b;
}

Java程式碼

import java.util.Scanner; /*開啟套件package util=utility用途,Scanner掃描器*/ /*蘇詩涵industry=公用事業產業,電力,自來水,效用=utility */ class MyClass { public static void main(String[] args) { String a, b=""; /*定義字串a,b */ Scanner myObj = new Scanner(System.in); /*建構掃描物件*/ System.out.print("輸入: "); a = myObj.nextLine(); /*輸入文字nextLine到變數a */ System.out.println("長度: " + a.length());/*輸出字串長度length() */ for (int i = 0; i < a.length(); i++) /*迴圈 */ b = a.charAt(i) + b; /*a字元順序放到b前面*/ System.out.println("輸出: "+ b); } }