いいい - 経済統計練習帳

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&lt;html>
&lt;head>
&lt;title>例題4:4則演算&lt;/title>
&lt;meta charset="utf-8" />
&lt;script src="sample.js" >$lt;/script>
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&lt;body onload="sample()">
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<code>
function sample(){
 
a=20;
b=4;
c=a+b;
c=a-b;
c=a*b;
c=a/b;
 
alert(c);
 
}
</code>
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