var num=prompt("请输入数字:"); var ge=parseInt(num%10); var shi=parseInt(num/10%10); var bai=parseInt(num/100%10); var qian=parseInt(num/1000); document.write("个位数字:"+ge); document.write("<br/>十位数字:"+shi); document.write("<br/百位数字:"+bai); document.write("<br/千位数字:"+qian);
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