標籤：rto win doc body 網頁 寬高 style meta off
document：
1. 與client相關的寬高
document.body.clientWidth
document.body.clientHeight
document.body.clientLeft
document.body.clientTop
2. 與offset相關的寬高
3. 與scroll相關的寬高
網頁滾動到頂部或底部：
<!DOCTYPE html><html lang="zh-cn"><head> <meta charset="UTF-8"> <title>Document</title></head><body> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p> <script>function scrollBottomOrTop() { var clients = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight; var scrollTop = document.body.scrollTop; var wholeHeight = document.body.scrollHeight; if(clients+scrollTop>=wholeHeight){ alert(‘我已經滾動到了底部‘); } if(scrollTop == 0) { alert(‘我已經滾動到頂部了‘); }}window.onscroll = scrollBottomOrTop;</script> </body></html>
js/jq寬高的理解與運用
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