1.小明妈妈让小明去超市买东西,给100元
牙刷5元/只,牙膏15元一只,毛巾8元一条,
问:小明将100元花光,共有多少种购买方方案?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
//1
var a = 0;
for (var i = 0; i <= 20; i++) {
for (var j = 0; j <= 6; j++) {
for (var z = 0; z <=12; z++) {
if (100 == i * 5 + j * 15 + z * 8) {
document.write('牙刷' + i + '个,牙膏' + j + '个,毛巾' + z + '个<br />');
a++;
}
}
}
}
document.write('有' + a + '种方案');
</script>
</body>
</html>
2.小强去市场买鸡,小鸡0.5元/只,公鸡 2元/只,母鸡5元/只,
小明将100元花完,问共有多少购买方案?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
//2
var a = 0;
for (var i = 0; i <= 200; i++) {
for (var j = 0; j <= 50; j++) {
for (var z = 0; z <= 20; z++) {
if (100 == i * 0.5 + j * 2 + z * 5) {
document.write('小鸡' + i + '只,公鸡' + j + '只,母鸡' + z + '只<br />');
a++;
}
}
}
}
document.write('有' + a + '种方案');
</script>
</body>
</html>