day10记录

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>系统函数</title>
    <script>
        document.write(eval("3+6")+"<br>")
        document.write(isFinite(12))
        document.write(isFinite("魏无羡不好看"))
        document.write(isNaN(12))
        document.write(isNaN("易水寒"))
        document.write(isNaN("100"))
        document.write(Number("888 999"))
        document.write(Number("肖战"))
        document.write(parseInt("23"))
        document.write(parseFloat("23 22 21"))
        document.write(decodeURL())
    </script>
</head>
<body>

</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>校验输入框类型</title>
    <script>
        function isRight(subChar)
        {
        var findChar="qwertyuiopasdfghjklzxcvbnm";
          for (var i=0;i<subChar.length;i++)
          {
          if(findChar.indexOf(subChar.charAt(i))==-1)
            {
              alert("你输入的字符合法");
               return;
            }
          }
        alert("你输入的字符不合法")
        }
    </script>
</head>
<body>
<form action="" method="post" name="myform" id="myform">
    <input type="text" name="txtString">
    <input type="button" value="检查" onclick="isRight(document.myform.txtString.value)">
</form>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>购物车简易计算器</title>
    <style>
    section{
    width:260px;
    background-color:#c9e495;
    height:350px;
    text-align:center;
    padding-top:1px;
    }
    .textBaroder{
    border-width:1px;
    border-style:solid;
    }
    </style>
    <script>
        function compute(op)
        {
        var num1,num2;
        num1=parseFloat(document.myform.txtNum1.value);
                num2=parseFloat(document.myform.txtNum2.value);
                if (op=="+")
                document.myform.txtResult.value=num1+num2;
                if (op=="-")
                document.myform.txtResult.value=num1-num2;
                if (op=="*")
                document.myform.txtResult.value=num1*num2;
                if (op=="/"&& num2!=0)
                document.myform.txtResult.value=num1/num2;
        }
    </script>
</head>
<body>
<section>
    <h1><img src="../护眼.jpg" width="240" height="31">欢迎光临!</h1>
    <form action="" method="post" name="myform" id="myform">
        <h3><img src="../护眼.jpg" width="54" height="54">购物简易计算器</h3>
        <p>第一个数<input type="text" name="txtNum1" class="textBaroder" id="txtNum1" size="25"></p>
        <p>第二个数<input type="text" name="txtNum2" class="textBaroder" id="txtNum2" size="25"></p>
        <p>
            <input name="addButton2" type="button" id="addButton2" value=" + " onclick="compute('+')">
            <input name="subButton2" type="button" id="subButton2" value=" - " onclick="compute('-')">
            <input name="multButton2" type="button" id="multButton2" value=" * " onclick="compute('*')">
            <input name="divButton2" type="button" id="divButton2" value=" / " onclick="compite('/')"></p>
        <P>计算结果<input name="txtResult" type="text" class="textBaroder" id="txtResult" size="25">
        </P>
    </form>
</section>

</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>校验输入框类型</title>
    <script>
        function isRight(subChar)
        {
        var findChar="qwertyuiopasdfghjklzxcvbnm";
          for (var i=0;i<subChar.length;i++)
          {
          if(findChar.indexOf(subChar.charAt(i))==-1)
            {
              alert("你输入的字符合法");
               return;
            }
          }
        alert("你输入的字符不合法")
        }
    </script>
</head>
<body>
<form action="" method="post" name="myform" id="myform">
    <input type="text" name="txtString">
    <input type="button" value="检查" onclick="isRight(document.myform.txtString.value)">
</form>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>日期格式</title>
    <script>
    var now=new.Date();
      document.write("当前时间是"+now.toLocaleFormat("%Y-%m-%d %p %H:%M:%S %a"));
    </script>

</head>
<body>


</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>加减日期</title>
  <script>
    var now=new Date();
    var nationalDay=new Date(2023,10,1,0,0,0);
    var msel=nationalDay-now;
    document.write(msel+"毫秒<br>");

    document.write(parseInt(msel/(24*60*60*1000))+"天");

  </script>
</head>
<body>

</body>
</html>
Logo

Agent 垂直技术社区,欢迎活跃、内容共建。

更多推荐