Upload
-
View
1.381
Download
0
Embed Size (px)
DESCRIPTION
Citation preview
JAVASCRIPT & JQUERY 超基礎入門 張家鈞
南台科技大學2012暑期推廣教育課程
1
偉大的網頁設計師航道 • CSS
• PHP
• MySQL
• HTML
• javascript
(jQuery)
2
JAVASCRIPT在哪裡?
3
JAVASCRIPT在哪裡?
4
5
比大小
6
變數宣告 <script>
var num = 1;
alert('test');
</script>
7
DEBUG <script>
var num = 1;
alert(test);
</script>
8
變數宣告 <script>
var num = 1;
alert( num );
</script>
9
判斷是非:IF <script>
var num = 1;
if( num == 1 )
{
alert('對');
}
</script> 10
判斷是非:IF+ELSE IF <script>
var num = 1;
if( num == 1 )
{
alert('對');
}
else if( num == 2)
{
alert('對一半');
}
else
{
alert('錯');
}
</script> 11
整理一下 比大小需要的判斷
<script>
var num = 3;
if( num > 3 )
{
alert('對');
}
else
{
alert('錯');
}
</script>
12
給使用者輸入 <script>
var num = 3;
if( num > 3 )
{
alert('對');
}
else
{
alert('錯');
}
</script>
<input type="button" value="大" />
<input type="button" value="小" /> 13
問題:
應該是要
按下去[大][小]按鈕
才跳出判斷結果
14
加入函式:FUNCTION <script>
function guess()
{
var num = 3;
if( num > 3 )
{
alert('對');
}
else
{
alert('錯');
}
}
</script>
<input type="button" value="大" />
<input type="button" value="小" /> 15
按鈕事件 <script>
function guess( )
{
var num = 3;
if( num > 3 )
{
alert('對');
}
else
{
alert('錯');
}
}
</script> 16
<input type="button" value="大" onclick="guess()" />
<input type="button" value="小" onclick="guess()" />
按鈕事件-傳入變數 <script>
function guess( btn )
{
var num = 3;
if( num > 3 )
{
alert('對');
}
else
{
alert('錯');
}
}
</script> 17
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
判斷輸入的是大是小? <script>
function guess( btn )
{
var num = 3;
if( num > 3 )
{
if( btn == ‘big’ ) alert('對');
if( btn == ‘small’ ) alert('錯');
}
else
{
if( btn == ‘big’ ) alert('錯');
if( btn == ‘small’ ) alert('對');
}
}
</script>
18
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
似乎…答案很容易被猜中
var num = 3; 是固定的
→ 使用亂數(隨機)
就可以模擬擲骰子的過程
19
加入亂數函式 <script>
function guess( btn )
{
var num = 3;
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}
</script>
20
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
加入亂數函式 <script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
function guess( btn )
{
var num = 3;
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}
</script> 21
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
取得1~6之間的亂數 <script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
function guess( btn )
{
var num = getRandom( 1 , 6 );
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}
</script>
22
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
猜數字第一版完成 但仍有一些問題:
• 答案每次都不一樣,應該要固定才公平
• 要讓使用者看到骰子的答案
23
答案每次都不一樣, 應該要固定才公平:全域變數
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}
</script> 24
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
要讓使用者看到骰子的答案 <script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
alert('答案是'+num);
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script> 25
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
把答案寫在網頁上?
javascript可以做到,
但是非常麻煩
這時候我們需要 jQuery
26
設定JQUERY <script src="jquery.min.js"></script> <script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
alert('答案是'+num);
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script> 28
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
用DIV畫一下答案區 <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
alert('答案是'+num);
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script>
29
<div id="result"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
將答案寫入 骰子結果 <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
alert('答案是'+num);
$("#result").html( num );
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script>
30
<div id="result"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
除掉討人厭的ALERT() <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script> 31
<div id="result"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
除掉討人厭的ALERT() <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
if( num > 3 )
{
if( btn == „big‟ ) alert('對');
if( btn == „small‟ ) alert('錯');
}
else
{
if( btn == „big‟ ) alert('錯');
if( btn == „small‟ ) alert('對');
}
}</script> 32
<div id="result"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
來點動畫 <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == 'big' ) alert('對');
if( btn == 'small' ) alert('錯');
}
else
{
if( btn == 'big' ) alert('錯');
if( btn == 'small' ) alert('對');
}
}</script>
33
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
加入::[再一次]的按鈕 <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == 'big' ) alert('對');
if( btn == 'small' ) alert('錯');
}
else
{
if( btn == 'big' ) alert('錯');
if( btn == 'small' ) alert('對');
}
}</script>
34
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
<input type=“button” value=“再一次" onclick="reset()" />
隱藏答案,重設答案RESET() <script src="jquery.min.js"></script>
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
function reset()
{
num = getRandom( 1 , 6 );
$("#result").hide(1000);
}
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == 'big' ) alert('對');
if( btn == 'small' ) alert('錯');
}
else
{
if( btn == 'big' ) alert('錯');
if( btn == 'small' ) alert('對');
}
}</script>
35
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
<input type=“button” value=“再一次" onclick="reset()" />
把討人厭的ALERT都換掉 <script src="jquery.min.js"></script>
<script> function getRandom ( min , max ) { return Math.floor( Math.random() * (max-
min+1)+min ); }
function reset()
{ num = getRandom( 1 , 6 );
$(“#result”).hide(1000); }
var num = getRandom( 1 , 6 );
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == „big‟ ) $("#result").html( num + ' : 對');
if( btn == „small‟ ) $("#result").html( num + ' : 錯');
}
else
{
if( btn == „big‟ ) $("#result").html( num + ' : 錯');
if( btn == „small‟ ) $("#result").html( num + ' : 對');
}
}</script>
36
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
<input type=“button” value=“再一次" onclick="reset()" />
記錄一下玩的次數 <script src="jquery.min.js"></script>
<script> function getRandom ( min , max ) { return
Math.floor( Math.random() * (max-min+1)+min ); }
function reset()
{ num = getRandom( 1 , 6 );
$(“#result”).hide(1000);
times++;
$("#timebox").attr("value",'第'+times+'次');
}
var num = getRandom( 1 , 6 );
var times = 1;
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == „big‟ ) $("#result").html( num + ' : 對');
if( btn == „small‟ ) $("#result").html( num + ' : 錯');
}
else
{
if( btn == „big‟ ) $("#result").html( num + ' : 錯');
if( btn == „small‟ ) $("#result").html( num + ' : 對');
}
}</script>
37
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
<input type=“button” value=“再一次" onclick="reset()" />
<input id="timebox" type="textbox" size="3"
value="第1次" onclick="" />
值得一翻的範例檔案
39
美化按鈕 <script src="jquery.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.22.custom.min.js"></script>
<link type="text/css" href="css/smoothness/jquery-ui-1.8.22.custom.css" rel="stylesheet" />
<script>
function getRandom ( min , max ) {
return Math.floor( Math.random() * (max-min+1)+min );
}
var num = getRandom( 1 , 6 );
var times = 1;
$(function(){
$("input").button();
});
function reset()
{
num = getRandom( 1 , 6 );
$("#result").hide(1000);
times++;
$("#timebox").attr("value",'第'+times+'次');
}
function guess( btn )
{
$("#result").html( num );
$("#result").show(3000);
if( num > 3 )
{
if( btn == 'big' ) $("#result").html( num + ' : 對');
if( btn == 'small' ) $("#result").html( num + ' : 錯');
}
else
{
if( btn == 'big' ) $("#result").html( num + ' : 錯');
if( btn == 'small' ) $("#result").html( num + ' : 對');
}
}
</script>
40
<div id="result" style="display:none"> 骰子結果 </div>
<input type="button" value="大" onclick="guess('big')" />
<input type="button" value="小" onclick="guess('small')" />
<input type=“button” value=“再一次" onclick="reset()" />
<input id="timebox" type="textbox" size="3"
value="第1次" onclick="" />
JQUERY PLUGIN jQuery BlockUI Plugin (v2)
http://www.malsup.com/jquery/block/
DataTables
http://datatables.net/
41
網頁結構:DOM
42
http://www.cainiao8.com/web/html_dom/html_dom
_01_jiegou.html
其他屬性參考/參考資料 jQuery 教學- jQuery Tutorial
http://webdesign.kerthis.com/jquery/
jQuery: The Write Less, Do More, JavaScript Library
http://jquery.com/
PTT::ajax
http://www.ptt.cc/bbs/Ajax/index.html
JSDC
http://jsdc.tw/2012/
jQuery plugin 大集合
http://chen7768.blogspot.tw/2009/04/jquery-plugin.html 43