JavaScript を使用してオーディオ計算機を開発するための完全なコード
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"> <meta name="format-detection" content="telephone=no" /> <title>计算器</title> <style type="text/css"> *{margin:0;padding:0;} body{ background:#ffffcc; font-size:12px; font-family:"微软雅黑"; color:#666; } ul,ol{list-style:none;} .cac{ width:410px; background:#399; margin:0 auto; } .cac .c_title{ font-size:16px; color:#000; padding:10px 0 10px 10px; cursor:move; } .cac .c_show .c_txt{ width:390px; height:42px; font-size:34px; color:#999; border:none; outline:none; text-align:right; padding-right:20px; line-height:25px; } .cac .c_key ul{ border:1px solid #fff } .cac .c_key ul li{ border:1px solid #fff; width:69px; height:50px; font-size:25px; margin:5px; float:left; background:#cccc33; line-height:50px; cursor:pointer; text-align:center; } .cac .c_key .c_tool{ background:#3399cc; } .clear{clear:both;} </style> </head> <body> <div> <div>计算器</div> <div> <input type="text" value="0" onfocus="this.blur();" id="result"/> </div> <div> <ul> <li onclick="command(7);">7</li> <li onclick="command(8);">8</li> <li onclick="command(9);">9</li> <li><-</li> <li onclick="clearzero('j');">C</li> <li onclick="command(4);">4</li> <li onclick="command(5);">5</li> <li onclick="command(6);">6</li> <li onclick="tools('*','g');">×</li> <li onclick="tools('/','g');">÷</li> <li onclick="command(1);">1</li> <li onclick="command(2);">2</li> <li onclick="command(3);">3</li> <li onclick="tools('+','g');">+</li> <li onclick="tools('-','g');">-</li> <li onclick="command(0);">0</li> <li onclick="command(00);">00</li> <li onclick="dot('g');">.</li> <li onclick="tools('%','g');">%</li> <li onclick="equal('j');">=</li> <div></div> </ul> </div> </div> <script type="text/javascript" src=""></script> <script> /* 1.数字显示,数字拼接 2.点击操作符 3.点击数字 4.获取结果 5.不能连续输入 */ //点击按钮执行操作 var resultDom = document.getElementById("result"); var operate = true; var xop = true; function command(num){ if(needclear==1){ needclear=0; resultDom.value=''; } var str = resultDom.value; str =(str =="0"?"":str); resultDom.value = str+num; operate = true; play(num); } //清空 function clearzero(m){ resultDom.value = 0; play(m) } //计算等号 var needclear=0; function equal(m){ needclear=1; var result = resultDom.value.toString(); var r = eval(result); resultDom.value =r; play(m); } //小数点 function dot(m){ if(xop){ var num = resultDom.value.toString(); num +="."; resultDom.value = num; xop = ture; } play(m); } //点击操作符 function tools(op,m){ if(operate){ var num = resultDom.value; num = (num =="0"?"":num); resultDom.value = num+op; operate = false; } play(m); } //按键声音 function play(num){ var audioDom = document.getElementById("audio"); audioDom.innerHTML = "<embed src='wav/"+num+".wav' width='0' height='0'></embed>" } </script> </body> </html>
コードは前の章で説明しましたが、ここでそれを接続して実際の効果を示します。