htmltocsv
第一步首先我们要找到要读取的csv文件,csv文件是一种普通的文本文件,可以用版excel表格方式打权开第二步我们打开eclipse软件创建一个java项目,并新建一个读取和写出csv文件的类,第三步在类的主方法中,我们首先确定读取的csv文件路径,和写出的csv文件路径,这里操作的是,将读取的csv文件里面含有省和市的字符串按空格分开写入到新的csv文件,第四步我们使用 BufferedReader reader = new BufferedReader()方法来读取和写入csv文件,循环进行遍历,其中 inString.replace(str[i], "," + str[i] + ",");来替换字符串,第五步我们运行项目指挥,打开写入csv文件的路径,可以看到已经生成了一个新的csv文件,第六步我们双击打开生成的csv文件,可以看到含有省,市字的字符串都被空格分开,这样就成功了进行了读取和写入csv文件,
2. html表格 怎样转为CSV格式数组
^//HTML表格的每行转为CSV格式数组
function get_tr_array($table) {
$table = preg_replace("'<td[^>]*?>'si",'"',$table);
$table = str_replace("</td>",'",',$table);
$table = str_replace("</tr>","{tr}",$table);
//去HTML 标记
$table = preg_replace("'<[\/\!]*?[^<>]*?>'si","",$table);
//去空专白字符属
$table = preg_replace("'([\r\n])[\s]+'","",$table);
$table = str_replace(" ","",$table);
$table = str_replace(" ","",$table);
$table = explode(",{tr}",$table);
array_pop($table);
3. javascript 读取csv文件
进入Internet属性=》安全=》自定义级别,把ActiveX控件和插件下的所有选项都改成启用
因为js是客户端的,所以服务器不可能控制
建议你使用其他 语言来读excel及csv
把你的代码发出来,看看。
4. 如何用python的pandas包的to_csv方法将中文输出到csv文件中
文本内容如下:
12-06 14:50:23.600: I/ActivityManager(605): Displayed com.suning.numberlocation/.NumberLocationActivity: +125ms
12-06 14:50:52.581: I/ActivityManager(605): Displayed com.suning.numberlocation/.NumberLocationActivity: +126ms
12-06 14:51:21.391: I/ActivityManager(605): Displayed com.suning.numberlocation/.NumberLocationActivity: +108ms
12-06 14:51:50.652: I/ActivityManager(605): Displayed com.suning.numberlocation/.NumberLocationActivity: +121ms
想使用python截取每一行中的特定数据,然后把它们写入到csv文件中!
想截取每一行中的3段字符串 “numberlocation” “NumberLocationActivity” “125”
在CSV中看到的期待结果是(一行输出3段字符串):
numberlocation NumberLocationActivity 125
5. javascript怎么修改csv文件
如果是基于浏览器,那就不能修改。
js读取CSV格式数据,参考如下:
<script type="text/javascript">
// This will parse a delimited string into an array of
// arrays. The default delimiter is the comma, but this
// can be overriden in the second argument.
function CSVToArray( strData, strDelimiter ){
// Check to see if the delimiter is defined. If not,
// then default to comma.
strDelimiter = (strDelimiter || ",");
// Create a regular expression to parse the CSV values.
var objPattern = new RegExp(
(
// Delimiters.
"(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
// Quoted fields.
"(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
// Standard fields.
"([^\"\\" + strDelimiter + "\\r\\n]*))"
),
"gi"
);
// Create an array to hold our data. Give the array
// a default empty first row.
var arrData = [[]];
// Create an array to hold our indivial pattern
// matching groups.
var arrMatches = null;
// Keep looping over the regular expression matches
// until we can no longer find a match.
while (arrMatches = objPattern.exec( strData )){
// Get the delimiter that was found.
var strMatchedDelimiter = arrMatches[ 1 ];
// Check to see if the given delimiter has a length
// (is not the start of string) and if it matches
// field delimiter. If id does not, then we know
// that this delimiter is a row delimiter.
if (
strMatchedDelimiter.length &&
(strMatchedDelimiter != strDelimiter)
){
// Since we have reached a new row of data,
// add an empty row to our data array.
arrData.push( [] );
}
// Now that we have our delimiter out of the way,
// let's check to see which kind of value we
// captured (quoted or unquoted).
if (arrMatches[ 2 ]){
// We found a quoted value. When we capture
// this value, unescape any double quotes.
var strMatchedValue = arrMatches[ 2 ].replace(
new RegExp( "\"\"", "g" ),
"\""
);
} else {
// We found a non-quoted value.
var strMatchedValue = arrMatches[ 3 ];
}
// Now that we have our value string, let's add
// it to the data array.
arrData[ arrData.length - 1 ].push( strMatchedValue );
}
// Return the parsed data.
return( arrData );
}
</script>
6. python使用df_A.to_csv("./矩阵A/example_A.csv", index=False, header=False)可以传参数吗
defto_csv(df_A,*filepaths):
forfpinfilepaths:
df_A.to_csv(fp,index=False,header=False)
to_csv(df_A,'example_A.csv','example_B.csv')
7. df.to csv 把文件写入到哪里
你好运气啊~~我前几天刚做过这个~~~下面这大段代码是2个方法除了在第一个方法里将文件名和要写入的表头改成你自己的之外其余照搬就可以了最后只需用在你的主方法里调用这两个方法就行了不易理解的地方我做了注释祝你成功~~~(ListgetPutOutTaskResult){//在我的代码里,getPutOutTaskResult是我需要导出的信息列表,你换成你的就行BufferedWriterout=null;intrandom=(int)(Math.random()*1000+1);//这个随机数只是为了让后面生成的文件名不重复而已FileexcelFile=null;try{excelFile=File.createTempFile("你的文件名"+random,".csv");//生成一个csv临时文件excelFile.deleteOnExit();}catch(IOExceptione1){e1.printStackTrace();}inti=1;try{out=newBufferedWriter(newFileWriter(excelFile));out.write("序号"+","+"用户号码"+","+"是否成功"+","+"失败原因"+",");//换成你需要的表头out.newLine();IteratorresultIterator=getPutOutTaskResult.iterator();while(resultIterator.hasNext()){Ee=resultIterator.next();out.write(i+","+A+","+B+","+C);//A、B、C等等都换上你自己的就可以i是一个自增序号out.newLine();i++;}out.flush();}catch(IOExceptione){e.printStackTrace();}finally{if(out!=null){try{out.close();}catch(IOExceptione){e.printStackTrace();}}}returnexcelFile;}/***将服务器端生成的Excel文件提供给客户端下载**@paramrequest*@paramresponse*@paramtempFile*/privatevoiddownload(HttpServletRequestrequest,HttpServletResponseresponse,FiletempFile){Stringfilenamedownload=tempFile.toString();Stringfilenamedisplay=tempFile.getName();try{filenamedisplay=URLEncoder.encode(filenamedisplay,"UTF-8");}catch(){e1.printStackTrace();}response.addHeader("Content-Disposition","attachment;filename="+filenamedisplay);OutputStreamoutput=null;FileInputStreamfis=null;try{output=response.getOutputStream();fis=newFileInputStream(filenamedownload);byte[]b=newbyte[1024];inti=0;while((i=fis.read(b))>0){output.write(b,0,i);}output.flush();}catch(Exceptione){e.printStackTrace();}finally{if(fis!=null){try{fis.close();}catch(IOExceptione){e.printStackTrace();}fis=null;}if(output!=null){try{output.close();}catch(IOExceptione){e.printStackTrace();}output=null;}}}
8. csv文件转换
麻烦!全部转存SIM卡,然后把电话卡插到MOTO,会提示你是否复制SIM卡联系人到手机,OK!
我一般用QQ同步助手 ,我相信这个软件肯定行,把所以电话本传到你的QQ再从摩托下载个那个软件,然后把电话本下载下来