我想以以下格式显示日期和日期，但它对我不起作用。错误显示“未捕获类型错误:无法将属性‘innerHTML’设置为 null”。谁能帮我摆脱这个困境？
输出:-
今天是:星期三
当前时间是:晚上 8 点:25:20
** 我的 HTML 代码:-**
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Excercise</title>
<script src="Js\DateTimeExcercise.js">
</script>
</head>
<body>
Today is : <span id="day"></span>
<br/><br/>
Current time is : <span id="time"></span>
</body>
</html>
** 我的 Java 脚本代码:-**
var day, time, Sec, Min, Hr, AMPM;
AMPM = "AM";
day = new Date().getDay();
Sec = new Date().getSeconds();
Min = new Date().getMinutes();
Hr = new Date().getHours();
if (Hr>12)
{
Hr = Hr - 12;
AMPM = "PM";
}
switch(day)
{
case 0:
txt = "Sunday";
break;
case 1:
txt = "Monday";
break;
case 2:
txt = "Tueday";
break;
case 3:
txt = "Wednesday";
break;
case 4:
txt = "Thrusday";
break;
case 5:
txt = "Friday";
break;
case 6:
txt = "Saturday";
break;
}
document.getElementById("day").innerHTML = txt;
document.getElementById("time").innerHTML = Hr + " "+ AMPM + " "+ ":" + Min + ":" + Sec;
最佳答案
尝试调用 html 底部的脚本。
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Excercise</title>
</head>
<body>
Today is : <span id="day"></span>
<br/><br/>
Current time is : <span id="time"></span>
</body>
<script src="Js\DateTimeExcercise.js">
</script>
</html>
关于javascript - 我的下面的 JavaScript 代码有什么问题？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42955697/