per*_*yer 24 javascript html-table spreadsheet
使用Javascript,如何创建一个HTML表格,可以从excel(或谷歌电子表格)"接受"数字矩阵数据,通过电子表格中的"复制",然后"粘贴"到浏览器中的表格中.
Pau*_*ott 18
这只能在IE上可靠地工作,因为Firefox(可能还有其他人)不允许访问剪贴板而没有特别允许它; 早先粘贴到textarea的建议可能比这更好.
从电子表格复制时,通常使用制表符(chr9)和带有CR(chr13)的行分隔单元格.此脚本将剪贴板转换为2D数组,然后从中构建表.不太优雅,但它似乎工作从Excel复制数据.
<html>
<head>
<script language="javascript">
function clip() {
// get the clipboard text
var clipText = window.clipboardData.getData('Text');
// split into rows
clipRows = clipText.split(String.fromCharCode(13));
// split rows into columns
for (i=0; i<clipRows.length; i++) {
clipRows[i] = clipRows[i].split(String.fromCharCode(9));
}
// write out in a table
newTable = document.createElement("table")
newTable.border = 1;
for (i=0; i<clipRows.length - 1; i++) {
newRow = newTable.insertRow();
for (j=0; j<clipRows[i].length; j++) {
newCell = newRow.insertCell();
if (clipRows[i][j].length == 0) {
newCell.innerText = ' ';
}
else {
newCell.innerText = clipRows[i][j];
}
}
}
document.body.appendChild(newTable);
}
</script>
</head>
<body>
<input type="button" onclick="clip()">
</body>
</html>
这是我创建的javascript代码(基于有用的答案).我是javascript的新手,所以我确信有更好的方法可以做到这一点,但它似乎有效......目标是从电子表格中将两列数字数据"粘贴"到文本区域(I已经尝试了excel和谷歌电子表格)并创建浮点向量"xf"和"yf".希望对某人有用.批评欢迎......
它假设这些存在于html页面上......
<textarea id="psmtext" rows=24 cols=72> </textarea>
<input type="button" value="run code" onClick="psmtest();">
function psmtest(){
var psmtext = document.getElementById("psmtext");
var st = psmtext.value;
Ast = st.split("\n");
var numrows = Ast.length;
var ii;
var xs = [];
var ys = [];
for (ii = 0 ; ii < numrows ; ii++) {
// tab or comma deliminated data
if ( Ast[ii].split(",",2)[1] != null ){ ys[ii] = Ast[ii].split(",")[1]; xs[ii] = Ast[ii].split(",")[0];}
if ( Ast[ii].split("\t",2)[1] != null ){ ys[ii] = Ast[ii].split("\t")[1]; xs[ii] = Ast[ii].split("\t")[0];}
}
var xss = [];
var yss = [];
var numgoodrows = 0;
var iii =0;
for (ii = 0 ; ii < numrows ; ii++) {
if ( xs[ii] != null && ys[ii] != null) {
xss[iii] = xs[ii];
yss[iii] = ys[ii];
iii++;
}
}
numgoodrows = iii;
// next I need to convert to floating point array var xf = [], var yf = [];
var xf = [];
var yf = [];
for (ii = 0 ; ii < numgoodrows ; ii++) {
xf[ii] = parseFloat(xss[ii]);
yf[ii] = parseFloat(yss[ii]);
}
}