关于模糊搜索的实现

var m = 0;
my_str = "";
mm = "";
arr1_Ar = new Array();
System.useCodepage = true;
loadVariables("haha.txt", _level0);
function chazhao() {//查找部分的函数
for (i=1; i<=3; i++) {
m = 0;
n = t.length;
my_xunhuan = _level0["txt"+i].length-t.length+1;
for (j=1; j<=my_xunhuan; j++) {
my_s = _level0["txt"+i].substring(m, n);
if (my_s == t && my_s != undefind) {
arr1_Ar.push(_level0["t"+i]+" ");
}
m++;
n++;
}
}
}
function jiance() {//检测部分的函数
if (t.length<=0) {
r.text = "请输入您要查找的信息";
} else {
chazhao();
printout();
}
}
function printout() {//输出部分的函数
if (arr1_Ar.length<1) {
r.text = "无查找数据";
} else {
for (i=0; i<=arr1_Ar.length-1; i++) {
mm = my_str.concat(mm, arr1_Ar[i]);
}
r.text = mm;
}
}
function qingkong() {//清空数组
arr1_Ar.splice(0, arr1_Ar.length-1);
}
btn.onRelease = function() {//当鼠标按下的时候执行
r.text = "";
jiance();
qingkong();

};