<!DOCTYPE html>
<html lang="zh-Hant-TW">
<head>
<title>Learing Javascript</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style type="text/css">
</style>
</head>
<body>
<p>今天天氣如何?</p>
<input id="myInput" type="text" name="" value="my Value">
<button id="myButton">提交</button>
<script type="text/javascript">
// ----------if條件式基本架構-----------
var x = 1;
if (x == 1){
alert("x等於1");
} else {
alert("x不等於1");
}
// -----------判斷式用x宣告----------
document.getElementById("myButton").onclick = function(){
var x = document.getElementById("myInput").value;
if (x == "下雨") {
alert("今天下雨");
} else {
alert("今天沒有下雨");
}
}
// --------------基本架構--------------
document.getElementById("myButton").onclick = function(){
if (document.getElementById("myInput").value == "下雨") {
alert("今天下雨");
} else {
alert("今天沒有下雨");
}
}
</script>
</body>
</html>
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