如何在表格中显示。 <这是我的第一个问题,所以我希望我能得到解决方案>
` 读取文件(通过用户输入选择) var阅读器; //仅用于演示目的的GLOBAL File Reader对象
/**
* Check for the various File API support.
*/
function checkFileAPI() {
if (window.File && window.FileReader && window.FileList && window.Blob) {
reader = new FileReader();
return true;
} else {
alert('The File APIs are not fully supported by your browser. Fallback required.');
return false;
}
}
/**
* read text input
*/
function readText(filePath) {
var output = ""; //placeholder for text output
if(filePath.files && filePath.files[0]) {
reader.onload = function (e) {
output = e.target.result;
displayContents(output);
};//end onload()
reader.readAsText(filePath.files[0]);
}//end if html5 filelist support
else if(ActiveXObject && filePath) { //fallback to IE 6-8 support via ActiveX
try {
reader = new ActiveXObject("Scripting.FileSystemObject");
var file = reader.OpenTextFile(filePath, 1); //ActiveX File Object
output = file.ReadAll(); //text contents of file
file.Close(); //close file "input stream"
displayContents(output);
} catch (e) {
if (e.number == -2146827859) {
alert('Unable to access local files due to browser security settings. ' +
'To overcome this, go to Tools->Internet Options->Security->Custom Level. ' +
'Find the setting for "Initialize and script ActiveX controls not marked as safe" and change it to "Enable" or "Prompt"');
}
}
}
else { //this is where you could fallback to Java Applet, Flash or similar
return false;
}
return true;
}
/**
* display content using a basic HTML replacement
*/
function displayContents(txt) {
var el = document.getElementById('main');
el.innerHTML = txt; //display output in DOM
}
</script>
</head>
<body onload="checkFileAPI();">
<div id="container">
<input type="file" onchange='readText(this)' />
<br/>
<hr/>
<h3>Contents of the Text file:</h3>
<div id="main">
...
</div>
</div>
</body>
</html>`
请帮助我
答案 0 :(得分:0)
您可以将文本文件格式化为SSV(TSV或CSV),然后代替ReadAll()
我会这样做:
var file = reader.OpenTextFile(filePath, 1),
data = [], n;
while (!file.AtEndOfStream) {
data.push(file.ReadLine().split(';')); // or use some other "cell-separator"
}
如果你的HTML中有一个空的table
元素,那么其余部分会更加简单和快捷:
<table id="table"></table>
现在只需根据data
数组动态创建行和单元格:
var table = document.getElementById('table'),
len = data.length,
r, row, c, cell;
for (r = 0; r < len; r++) {
row = table.insertRow(-1);
for (c = 0; c < data[r].lenght; r++) {
cell.row.insertCell(-1);
cell.innerHTML = data[r][c];
}
}