网页字体颜色随机改变效果

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网页字体颜色随机改变效果

2016-09-25 网页编程网 网页编程网

<script>
 hexa = new MakeArray(16)
 hexa[10] = "A"
 hexa[11] = "B"
 hexa[12] = "C"
 hexa[13] = "D"
 hexa[14] = "E"
 hexa[15] = "F"
  function MakeArray(n){
 this.length = n
 for (var i = 0; i <= n; i++)
 this[i] = i
 return this
 }
 function colours(text){
 var posa = 0
 var posb = 1
 while (posa <= text.length){
 var r = Math.floor(Math.random() * 15)
 var rr= Math.floor(Math.random() * 15)
 var g = Math.floor(Math.random() * 15)
 var gg = Math.floor(Math.random() * 15)
 var b = Math.floor(Math.random() * 15)
 var bb = Math.floor(Math.random() * 15)
 if (text.substring(posa,posb) == "<"){
 var posaa = 0
 posaa = posa
 while (text.substring(posaa,posb) != ">"){
 posaa++
 posb++
 }
 document.write(text.substring(posa, posb))
 posa = posb
 posb = posa + 1
 }
 document.write("<font color=#"+hexa[r]+hexa[rr]+hexa[g]+hexa[gg]+hexa[b]+hexa[bb]+">")
 document.write(text.substring(posa, posb)+"</font>")
 posa++
 posb++
 }
 }
</script>
<script>
 text = "This JavaScript shows every other letter of text as a different, random colour."
 text +="You can also use any <blink> <font size=9> HTML </font> </blink> codes that you want"
 text +=" As long as you don't use quotation marks and the commands have a space between them."
 text +="  You can use any background colour or picture that you want, but black or white is sugeste"
 text +="d <b> <u>HAVE FUN!!! </u> welcome to your fanther;</b>"
 colours(text);
 </script>

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