回答編集履歴
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修正
test
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@@ -1,5 +1,139 @@
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```html
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<!DOCTYPE html>
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<html lang="ja">
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<head>
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<meta charset="UTF-8">
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<title>信号を作る</title>
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</head>
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<body>
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<div id="square">
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<div id="red"></div>
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<div id="yellow"></div>
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<div id="blue"></div>
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</div>
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<button id="start">START</button>
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<button id="stop">STOP</button>
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<script
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src="https://code.jquery.com/jquery-3.1.1.slim.js"
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integrity="sha256-5i/mQ300M779N2OVDrl16lbohwXNUdzL/R2aVUXyXWA="
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crossorigin="anonymous"></script>
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<script>
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var interval; //setintervalとclearintervalつなぐやつ
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//青３秒点灯→３秒点滅→黄色２秒→赤５秒
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//とりあえずボタン押したら青が点灯するプログラム書きます
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window.onload = function () {
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var start = document.getElementById('start');
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start.addEventListener('click', tentou, false);
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start.addEventListener('click', start_flash, false);
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};
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function tentou() {
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var blue = document.getElementById('blue');
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blue.style.backgroundColor = 'blue';
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}
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//ボタン押してして三秒後に点滅開始
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function start_flash() {
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setTimeout(wait, 3000);
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function wait() {
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interval = setInterval(tenmetsu, 500);
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}
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}
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function tenmetsu() {
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var blue = document.getElementById('blue');
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if (blue.style.backgroundColor === 'blue') {
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blue.style.backgroundColor = 'white'
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} else {
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blue.style.backgroundColor = "blue"
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}
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}
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//その三秒後（デフォルトから６秒後)点滅終了
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$('#blue').click(function () {
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setTimeout(wait, 6000);
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function wait() {
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clearInterval(interval);
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}
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});
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//同時に黄色点灯
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$('#yellow').click(function () {
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setTimeout(yellow, 6000);
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function yellow() {
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$('#yellow').css('background-color', 'yellow');
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}
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});
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</script>
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</body>
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</html>
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```
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