📄 tu1.12.htm
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<HTML>
<HEAD>
<TITLE>逻辑运算符</TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
<!--
var a=2;
var b=3;
document.write("a=2, b=3<P>");
document.write("逻辑与：a<b&&a<=b = "); document.write(a<b&&a<=b);
document.write("<BR>");
document.write("逻辑与：a<b&&a>b = "); document.write(a<b&&a>b);
document.write("<BR>");
document.write("逻辑或：a<b||a>b = "); document.write(a<b||a>b);
document.write("<BR>");
document.write("逻辑或：a>b||a>=b = "); document.write(a>b||a>=b);
document.write("<BR>");
document.write("逻辑非：!(a<b) = "); document.write(!(a<b));
document.write("<BR>");
document.write("逻辑非：!(a>b) = "); document.write(!(a>b));
// -->
</SCRIPT>
</BODY>
</HTML>
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