サマリー：<!DOCTYPE html><html ><head> <meta charset="UTF-8"> <title>微博輸入框</title> <style type ="text/css"> body{font-size: 12px;} .box{width: 600
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title>微博輸入框</title>
<style type ="text/css">
body{font-size: 12px;}
.box{width: 600px;height: 160px;border:10px solid pink;margin:0px auto;padding:10px;}
img{float:left;}
.box1{float:left;margin-left: 255px;width: 150px;height:24px;text-align: right;font-size: 14px;color:#888;}
.box1 span{font-size: 16px;font-weight:bold;}
#text{width: 600px;height: 100px;border:1px solid #888; margin-top: 5px;}
.box #sp1,#sp2,#sp3,#sp4,#sp5,#sp6{float:left; width: 30px;height: 32px;line-height: 32px;padding-left: 26px;}
#sp1{background:url(images/png1.png) no-repeat left center;}
#sp2{background:url(images/png2.png) no-repeat left center;}
#sp3{background:url(images/png3.png) no-repeat left center;}
#sp4{background:url(images/png4.png) no-repeat left center;}
#sp5{background:url(images/png5.png) no-repeat left center;width: 40px;}
#sp6{margin-left:150px; margin-right: 15px;color:#888;}
#bt{float:left;width: 80px;height: 30px;border:none;background-color: #ffc09f;color:#fff;border-radius: 5px;}
</style>
<script type="text/javascript">
var text, number, m;
window.onload = function(){
text = document.getElementById("text");
number = document.getElementById("number");
bt=document.getElementById('bt');
text.onkeyup = function aa(){
m = 140 - text.value.length;
if(m < 0){
number.style.color = "red";
}
else{
number.style.color = "#888"
}
number.innerHTML = m;
}
bt.onclick = function(){
if(m == 140){alert("您還沒(méi)有輸入");
text.focus();}
else if(m<0){
alert("字?jǐn)?shù)過(guò)多,不可以發(fā)布");
texy.focus();
}
else{
alert("發(fā)布成功!");
}
}
aa();
}
</script>
</head>
<body>
<div class = "box">
<img src="images/左題頭.png">
<div class="box1">還可以輸入<span id="number"></span>字</div>
<textarea id="text"></textarea>
<span id="sp1">表情</span>
<span id="sp2">圖片</span>
<span id="sp3">視頻</span>
<span id="sp4">話題</span>
<span id="sp5">長(zhǎng)微博</span>
<span id="sp6">公開(kāi)</span>
<input type="button" value = "發(fā)布" id="bt">
</div>
</body>
</html>
添削の先生：查無(wú)此人添削時(shí)間：2019-04-03 13:27:41
先生のまとめ：完成的不錯(cuò)。代碼記得要縮進(jìn)。 還有}要換行。繼續(xù)加油。