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javascript里的类思想 |
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作者:未知 来源:月光软件站 加入时间:2005-2-28 月光软件站 |
<script language=javascript> function File(filename,filesize) { this.filename=filename; this.filesize=filesize; } function ArrayFile() { this.f = new Array(); this.count=0; this.add=function(file) { this.f.push(file); this.count+=1; } this.max=function(f1, f2, field) { switch (field) { case "filename": return f1.filename>f2.filename? true:false; case "filesize": return f1.filesize>f2.filesize? true:false; default: return false; } } this.sort=function(field,order) { //order:desc asc //field:filename filesize var len = this.f.length; if( len < 2 ) return; var tmp; for(var i=0; i<len-1; i++) { for(var j=i+1; j<len; j++) { if( order == "desc") { if( !this.max(this.f[i], this.f[j], field) ) { tmp = this.f[i]; this.f[i] = this.f[j]; this.f[j] = tmp; } } else if ( order == "asc") { if( this.max(this.f[i], this.f[j], field) ) { tmp = this.f[i]; this.f[i] = this.f[j]; this.f[j] = tmp; } } } } } } var t1 = new File("c.asp",32); var t2 = new File("a.asp",132); var t3 = new File("b.asp",12); var ArrayFile = new ArrayFile(); ArrayFile.add(t1); ArrayFile.add(t2); ArrayFile.add(t3); ArrayFile.sort("filesize","asc"); alert(ArrayFile.f[0].filename); alert(ArrayFile.f[1].filename); alert(ArrayFile.f[2].filename); </script>

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