是否有一种方法，我可以得到的最后一个值(基于'\'符号)从一个完整的路径?
例子:
C:\Documents and Settings\img\recycled log.jpg
在这种情况下，我只想从JavaScript的完整路径中回收log.jpg。
当前回答
<html>
<head>
<title>Testing File Upload Inputs</title>
<script type="text/javascript">
<!--
function showSrc() {
document.getElementById("myframe").href = document.getElementById("myfile").value;
var theexa = document.getElementById("myframe").href.replace("file:///","");
alert(document.getElementById("myframe").href.replace("file:///",""));
}
// -->
</script>
</head>
<body>
<form method="get" action="#" >
<input type="file"
id="myfile"
onChange="javascript:showSrc();"
size="30">
<br>
<a href="#" id="myframe"></a>
</form>
</body>
</html>
其他回答
完整的答案是:
<html>
<head>
<title>Testing File Upload Inputs</title>
<script type="text/javascript">
function replaceAll(txt, replace, with_this) {
return txt.replace(new RegExp(replace, 'g'),with_this);
}
function showSrc() {
document.getElementById("myframe").href = document.getElementById("myfile").value;
var theexa = document.getElementById("myframe").href.replace("file:///","");
var path = document.getElementById("myframe").href.replace("file:///","");
var correctPath = replaceAll(path,"%20"," ");
alert(correctPath);
}
</script>
</head>
<body>
<form method="get" action="#" >
<input type="file"
id="myfile"
onChange="javascript:showSrc();"
size="30">
<br>
<a href="#" id="myframe"></a>
</form>
</body>
</html>
function getFileName(path, isExtension){
var fullFileName, fileNameWithoutExtension;
// replace \ to /
while( path.indexOf("\\") !== -1 ){
path = path.replace("\\", "/");
}
fullFileName = path.split("/").pop();
return (isExtension) ? fullFileName : fullFileName.slice( 0, fullFileName.lastIndexOf(".") );
}
<html>
<head>
<title>Testing File Upload Inputs</title>
<script type="text/javascript">
<!--
function showSrc() {
document.getElementById("myframe").href = document.getElementById("myfile").value;
var theexa = document.getElementById("myframe").href.replace("file:///","");
alert(document.getElementById("myframe").href.replace("file:///",""));
}
// -->
</script>
</head>
<body>
<form method="get" action="#" >
<input type="file"
id="myfile"
onChange="javascript:showSrc();"
size="30">
<br>
<a href="#" id="myframe"></a>
</form>
</body>
</html>
不是比nickf的回答更简洁，但是这个直接“提取”了答案，而不是用空字符串替换不需要的部分:
var filename = /([^\\]+)$/.exec(fullPath)[1];
下面这行JavaScript代码将提供文件名。
var z = location.pathname.substring(location.pathname.lastIndexOf('/')+1);
alert(z);
