JavaScript语言编写鸡兔同笼问题

JavaScript039

JavaScript语言编写鸡兔同笼问题,第1张

<body>

请输入头数：<input type="text" id="head"/><br/><br/><br/>

请输入脚数：<input type="text" id="foot"/><br/><br/><br/>

<input type="submit" id="sub"/>

<p id="ji"></p>

<p id="tu"></p>

</body>

<script>

var input1=document.getElementById("head")

var input2=document.getElementById("foot")

var sub=document.getElementById("sub")

var ji=document.getElementById("ji")

var tu=document.getElementById("tu")

sub.onclick=function(){

var txt1=input1.value

var txt2=input2.value

for(var i=1i<txt1i++){

if(i*2+(txt1-i)*4==txt2){

ji.innerText="鸡有"+i+"只"

tu.innerText="兔有"+(txt1-i)+"只"

}

}

}

</script>

Sub adsf() Dim n%, m%, TS%, JS% 5: n = InputBox("请输入总的个数：") If n = 0 Then GoTo 5 10: m = InputBox("请输入总的脚数：") If m = 0 Or m Mod 2 <>0 Or m <2 * n Then MsgBox "输入脚数不合理，请重新输入：", vbOKOnly + 64 GoTo 10 End If TS = (m - 2 * n) / 2 JS = (4 * n - m) / 2 If TS <0 Or JS <0 Or TS + JS <>n Or 4 * TS + 2 * JS <>m Then GoTo 10 MsgBox "鸡有：" &JS &"只" &Chr(13) &"兔有：" &TS &"只" End Sub