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50精币
这种换算的js怎么用易语言输出出来
原网址是这个http://youkud.com/content.php?id=4ca
就是输入 单位 1 米 然后 直接出来 100厘米 10分米 这种。
function LENGTH_MEASURES() {
this.mKilometer = 1000
this.mMeter = 1
this.mDecimeter = 0.1
this.mCentimeter = 0.01
this.mMillimeter = 0.001
this.mMicronmeter = 0.000001
this.mLimeter = 500
this.mZhangmeter = 10 / 3
this.mChimeter = 1 / 3
this.mCunmeter = 1 / 30
this.mFenmeter = 1 / 300
this.mmLimeter = 1 / 3000
this.engFoot = 0.3048
this.engMile = 5280 * this.engFoot
this.engFurlong = 660 * this.engFoot
this.engYard = 3 * this.engFoot
this.engInch = this.engFoot / 12
this.nautMile = 1852
this.nautFathom = 6 * this.engFoot
}
var length_data = new LENGTH_MEASURES();
function checkNum(str) {
for (var i=0; i<str.length; i++)
{
var ch = str.substring(i, i + 1)
if (ch!="." && ch!="+" && ch!="-" && ch!="e" && ch!="E" && (ch < "0" || ch > "9"))
{
alert("请输入有效的数字");
return false;
}
}
return true
}
function normalize(what,digits) {
var str=""+what;
var pp=Math.max(str.lastIndexOf("+"),str.lastIndexOf("-"));
var idot=str.indexOf(".");
if (idot>=1)
{
var ee=(pp>0)?str.substring(pp-1,str.length):"";
digits+=idot;
if (digits>=str.length)
return str;
if (pp>0 && digits>=pp)
digits-=pp;
var c=eval(str.charAt(digits));
var ipos=digits-1;
if (c>=5)
{
while (str.charAt(ipos)=="9")
ipos--;
if (str.charAt(ipos)==".")
{
var nc=eval(str.substring(0,idot))+1;
if (nc==10 && ee.length>0)
{
nc=1;
ee="e"+(eval(ee.substring(1,ee.length))+1);
}
return ""+nc+ee;
}
return str.substring(0,ipos)+(eval(str.charAt(ipos))+1)+ee;
}
else
var ret=str.substring(0,digits)+ee;
for (var i=0; i<ret.length; i++)
if (ret.charAt(i)>"0" && ret.charAt(i)<="9")
return ret;
return str;
}
return str;
}
function compute(obj,val,data) {
if (obj[val].value)
{
var uval=0;
uval = obj[val].value*data[val];
if( (uval >= 0) && (obj[val].value.indexOf("-") != -1) )
{
uval = -uval;
}
for (var i in data)
obj.value=normalize(uval/data,8);
}
}
function resetValues(form,data) {
for (var i in data)
form.value="";
}
function resetAll(form) {
resetValues(form,length_data);
}
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