bạn nào biết cách làm chương trình máy tính bỏ túi bằng javascript thì làm ơn hướng dẫn cho mình với.
bạn nào biết cách làm chương trình máy tính bỏ túi bằng javascript thì làm ơn hướng dẫn cho mình với.
<html>
<script>
function tinh()
{
for(i=0;i<3;i++)
{
if(frm_dd.frm_a[i].checked == true)
{
alert('OK');
return true;
//break;
}
}
if(i==3)
alert('Ban phai chon');
return false;
}
function tinh1()
{
if(frm_ddd.frm_nam.checked==false && frm_ddd.frm_nu.checked==false && frm_ddd.frm_khac.checked==false)
{
alert('Ban phai tron 1');
return false;
}
else
{
alert("OK 1");
return true;
}
}
//************************************************** *****
function hienthi(a)
{
document.pheptinh.manhinh.value+=a;
}
function tinh()
{
document.pheptinh.manhinh.value=eval(document.phep tinh.manhinh.value);
}
function xoa()
{
document.pheptinh.manhinh.value="";
}
</script>
<body>
<form id="frm_dd" name="frm_dd" method="post" action="http://www.youtube.com/watch?v=Uquy4fImnLM">
<input name="frm_a" type="radio" value="Nam">
Nam
<input name="frm_a" type="radio" value="Nu">
Nu
<input name="frm_a" type="radio" value="Khac">
Khac
<input type="submit" name="Submit" value="OK" onClick="return tinh();">
<input type="reset" name="Submit2" value="Reset">
</form>
<form name="frm_ddd" id="frm_ddd">
<input name="frm_nam" type="checkbox" id="frm_nam" value="checkbox">
Nam
<input name="frm_nu" type="checkbox" id="frm_nu" value="checkbox">
Nu
<input name="frm_khac" type="checkbox" id="frm_khac" value="checkbox">
Khac
<input type="submit" name="Submit3" value="Ok" onClick="return tinh1();">
<input type="reset" name="Submit4" value="Reset">
</form>
<form name="pheptinh">
<table align="center">
<caption>khigiadano<br><input name="manhinh" type="text" size=15></caption>
<tr align="center" bgcolor="#00FFFF">
<td><input name"n_1" type="button" value="1" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_2" type="button" value="2" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_3" type="button" value="3" onClick="hienthi(this.value)" style="width:25px">
<td><input name"cong" type="button" value="+" onClick="hienthi(this.value)" style="width:25px">
<tr align="center">
<td><input name"n_4" type="button" value="4" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_5" type="button" value="5" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_6" type="button" value="6" onClick="hienthi(this.value)" style="width:25px">
<td><input name"tru" type="button" value="-" onClick="hienthi(this.value)" style="width:25px">
<tr align="center" bgcolor="#00FFFF">
<td><input name"n_7" type="button" value="7" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_8" type="button" value="8" onClick="hienthi(this.value)" style="width:25px">
<td><input name"n_9" type="button" value="9" onClick="hienthi(this.value)" style="width:25px">
<td><input name"nhan" type="button" value="*" onClick="hienthi(this.value)" style="width:25px">
<tr align="center">
<td><input name"c" type="button" value="C" onClick="xoa()" style="width:25px">
<td><input name"n_0" type="button" value="0" onClick="hienthi(this.value)" style="width:25px">
<td><input name"bang" type="button" value="=" onClick="tinh()" style="width:25px">
<td><input name"chia" type="button" value="/" onClick="hienthi(this.value)" style="width:25px">
</table>
</form>
</body>
</html>
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