本文實例講述了JS實現瀏覽器狀態欄文字從右向左彈出效果。分享給大家供大家參考，具體如下：
這里狀態欄文字彈出代碼，從右向左彈出，通過修改Script中的這些代碼片段可改變效果：
var POSITION = 100
var DELAY = 4
var MESSAGE = "這里是你想要的文字！"
運行效果截圖如下：
在線演示地址如下：
http://demo.VeVB.COm/js/2015/js-status-bar-txt-scroll-codes/
具體代碼如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>狀態欄文字彈出代碼，從右向左彈出</TITLE></HEAD><BODY><script language="JavaScript"> <!--function statusMessageObject(p,d) { this.msg = MESSAGE this.out = " " this.pos = POSITION this.delay = DELAY this.i = 0 this.reset = clearMessage}function clearMessage() { this.pos = POSITION}var POSITION = 100var DELAY = 4 var MESSAGE = "狀態欄文字快速的一個一個彈出?。?！ " var scroll = new statusMessageObject()function scroller() { for (scroll.i = 0; scroll.i < scroll.pos; scroll.i++) { scroll.out += " " } if (scroll.pos >= 0) scroll.out += scroll.msg else scroll.out = scroll.msg.substring(-scroll.pos,scroll.msg.length) window.status = scroll.out scroll.out = " " scroll.pos-- if (scroll.pos < -(scroll.msg.length)) { scroll.reset() } setTimeout ('scroller()',scroll.delay)}function snapIn(jumpSpaces,position) { var msg = scroll.msg var out = "" for (var i=0; i<position; i++) {out += msg.charAt(i)} for (i=1;i<jumpSpaces;i++) {out += " "} out += msg.charAt(position) window.status = out if (jumpSpaces <= 1) { position++ if (msg.charAt(position) == ' ') {position++ } jumpSpaces = 100-position } else if (jumpSpaces > 3) {jumpSpaces *= .75} else {jumpSpaces--} if (position != msg.length) { var cmd = "snapIn(" + jumpSpaces + "," + position + ")"; scrollID = window.setTimeout(cmd,scroll.delay); } else { window.status="" jumpSpaces=0 position=0 cmd = "snapIn(" + jumpSpaces + "," + position + ")"; scrollID = window.setTimeout(cmd,scroll.delay); return false } return true}snapIn(100,0);// --></script></BODY></HTML>希望本文所述對大家JavaScript程序設計有所幫助。
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