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function show(){
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var reg=/\d+/g;
var f1=reg.test(number);
alert(f1);
}
</script>
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function show(){
var number=parseInt(window.prompt("",""));
var reg=/\d+/g;
reg.compile(/\d+/g);
var f1=reg.test(number);
alert(f1);
}
</script>
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}
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if (!patrn.exec(s)) return false
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