JS案例：赋值运算符使用示例
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<title>赋值运算符测试示例</title>
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<script type="text/javascript">
var a=5,b=6;
document.writeln("a=5,b=6");
document.writeln(" ");
document.write("a+=b="); a+=b; document.writeln(a);
document.write("a-=b="); a-=b; document.writeln(a);
document.write("a*=b="); a*=b; document.writeln(a);
document.write("a/=b="); a/=b; document.writeln(a);
document.write("a%=b="); a%=b; document.writeln(a);
</script>
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