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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- // 判断传过来的数字能否被3 5 7整除
- // 如果成立则返回true(真) 否则返回false(假)
- function foo(num) {
- if (num % 3 == 0 && num % 5 == 0 && num % 7 == 0) {
- return true;
- } else {
- return false;
- }
- }
- var count = 0;
- for (var i = 1; i < 1000; i++) {
- var val = foo(i);
- if (val) {
- document.write(i + " ");
- count++;
- if (count % 6 == 0) {
- document.write("<br>");
- }
- }
- }
- </script>
- </body>
- </html>
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