脚本说明: , {4 S" C2 W" D! [* R6 S; Y. S 0 V# _& Y1 D1 m. o# B3 Q8 t
第一步:把如下代码加入<body>区域中$ [6 w8 L' |' ^- [& z
<script language="JavaScript">0 f$ |* L6 i5 \- \+ n s s
" u L+ k, j$ u" x" ?function nextSize(i,incMethod,textLength). R; a2 O- Y/ S( ]/ ^
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if (incMethod == 1) return (72*Math.abs( Math.sin(i/(textLength/3.14))) );( j8 _9 Y- f( {; k* l. b( l8 l
if (incMethod == 2) return (255*Math.abs( Math.cos(i/(textLength/3.14))));: q1 f: y( {. B6 L! m. q* D
} + y) N" n" \$ S0 i0 G% |4 a3 t8 _! |. T7 J4 i/ F/ Z. i
function sizeCycle(text,method,dis)4 G, K+ x! |( G* {6 P
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output = "";. w7 a3 L% L2 B/ b
for (i = 0; i < text.length; i++) : B! z" |8 \) Q1 s0 m" P9 P$ v { ; C: X* }3 T$ q# `# l, ~! t size = parseInt(nextSize(i +dis,method,text.length)); + B5 ?/ K2 X: t# X* K output += "<font style='font-size: "+ size +"pt'>" +text.substring(i,i+1)+ "</font>"; # o; p" J. m+ e }% }/ E/ y( v3 X$ H3 Z2 L1 X
theDiv.innerHTML = output; ; k9 C+ o0 W: Z8 D}" T7 f7 W% A# o
% }# M: o' {* x% O% s
function doWave(n) 9 \( r' ~6 [- I4 a
{ 4 R {2 n! Y5 G' ?5 L- G; j theText = "JavaScript"; $ U0 u, A; ~" _7 q' q; w' p sizeCycle(theText,1,n);3 L0 d( \- C2 y1 n' O' f# y
if (n > theText.length) {n=0} z! s( L8 h" c% a+ O- n- a: u
setTimeout("doWave(" + (n+1) + ")", 50); ( Q, f4 ?5 [6 z" l' ?) {0 i9 k8 u} 3 o: b) A6 R9 _5 }! y4 q8 F</script> 3 X! ?4 ~ A# E1 v8 p) ?5 }<div ID="theDiv" align="center"> 7 q, n+ v8 M+ L8 h9 ^; H: n. q- w$ Q& v# w. [
</div> 7 c8 h6 {$ x+ y. H& E p. O2 G. {* {+ f) ]9 S; b2 O' k" M9 w
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8 _9 i! e {7 G; X v0 i& W第二步:把如下代码加入<body>区域中<body onload=doWave(0);>
