练习8_357整除的数.html 853 B

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <title>Document</title>
  7. </head>
  8. <body>
  9. <script>
  10. // 判断传过来的数字能否被3 5 7整除
  11. // 如果成立则返回true(真) 否则返回false(假)
  12. function foo(num){
  13. if(num%3 == 0 && num%5==0 && num%7 == 0){
  14. return true;
  15. }else{
  16. return false;
  17. }
  18. }
  19. var count = 0;
  20. for(var i = 1;i<1000;i++){
  21. var val = foo(i);
  22. if(val){
  23. document.write(i+"&nbsp;");
  24. count++;
  25. if(count%6==0){
  26. document.write("<br>");
  27. }
  28. }
  29. }
  30. </script>
  31. </body>
  32. </html>