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//林中誠動態網頁設計

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Ch5_5_2.htm</title>
</head>
<body>
<h2>算術運算子的使用</h2>
<hr>
<script>
var x, y;
var intInc = 50;
var intDec = 50;
var strTitle1 = "JavaScript是"
var strTitle2 = "一種網頁設計技術"
document.write("負號運算: -8    = " + -8 + "<br/>");
intInc++;
document.write("遞增運算: A++ = " + intInc + "<br/>");
intDec--;
document.write("遞減運算: A-- = " + intDec + "<br/>");
document.write("乘法運算: 6 * 7 = " + 6*7 + "<br/>");
document.write("除法運算: 8 / 3 = " + 8/3 + "<br/>");
document.write("餘數運算: 8 % 3 = " + 8%3 + "<br/>");
document.write("加法運算: 5 + 4 = " + (5+4) + "<br/>");
document.write("減法運算: 5 - 4 = " + (5-4) + "<br/><hr/>");
// 測試Pre-/Post- 運算子
x = 50;
y = 50;
document.write("x++ = " +x+++":x = " + x + "<br/>");
document.write("--y = " +--y+":y = " + y + "<br/><hr/>");
document.write("字串連接: " + (strTitle1+strTitle2) + "<br/>");
</script>
</body>
</html>

網頁文章 javax.portlet.title.56

//林中誠動態網頁設計

 算術運算子的使用


負號運算: -8 = -8
遞增運算: A++ = 51
遞減運算: A-- = 49
乘法運算: 6 * 7 = 42
除法運算: 8 / 3 = 2.6666666666666665
餘數運算: 8 % 3 = 2
加法運算: 5 + 4 = 9
減法運算: 5 - 4 = 1
 


x++ = 50:x = 51
--y = 49:y = 49
 


字串連接: JavaScript是一種網頁設計技術