read-data

Xamarin.Forms: Read Data using UsbDeviceConnection Library

由 霸气de小男生 提交于 2021-02-10 14:34:07
问题 I Have to read data from UsbDeviceConnection but the call UsbDeviceConnection.BulkTransfer(......) always returns -1. when I have to write data, all works fine, but when I try to receive, the call always returns -1 (receive failed). [Obsolete] public string ConnectAndRead() { // Get a usbManager that can access all of the devices var usbManager = (UsbManager)Forms.Context.GetSystemService(Context.UsbService); while(usbManager.DeviceList.Count == 0) { Debug.WriteLine($"Nessun dispositivo

Xamarin.Forms: Read Data using UsbDeviceConnection Library

由 和自甴很熟 提交于 2021-02-10 14:31:45
问题 I Have to read data from UsbDeviceConnection but the call UsbDeviceConnection.BulkTransfer(......) always returns -1. when I have to write data, all works fine, but when I try to receive, the call always returns -1 (receive failed). [Obsolete] public string ConnectAndRead() { // Get a usbManager that can access all of the devices var usbManager = (UsbManager)Forms.Context.GetSystemService(Context.UsbService); while(usbManager.DeviceList.Count == 0) { Debug.WriteLine($"Nessun dispositivo

Pandas: parse merged header columns from Excel

由 微笑、不失礼 提交于 2019-12-28 11:56:12
问题 The data in excel sheets is stored as follows: Area | Product1 | Product2 | Product3 | sales|sales.Value| sales |sales.Value | sales |sales.Value Location1 | 20 | 20000 | 25 | 10000 | 200 | 100 Location2 | 30 | 30000 | 3 | 12300 | 213 | 10 the product name is a merge of 2 cells of two rows "no of sales" and "sales value" for each of 1000 or so areas for a given month. Similarly there are separate files for each month for the last 5 years. Further, new products have been added and removed in

Read data from a txt file into 2D array python

由 大城市里の小女人 提交于 2019-12-25 18:32:16
问题 I'm fairly new to python and I would like to know if I could get some assistance with the problem I'm trying to solve: I would like to design a loop to iterate over every file in the directory and place the data into a 2D array for every file. I have a large directory of .txt files that contain 22 lines of 2 numbers per line. An example of how the files contents will be organized is: # Start of file_1.txt 1 2 3 4 5 6 7 8 # Start of file 2.txt 6 7 8 9 3 4 5 5 I would like to read the data

How do I read a text file by putting its data in a table using CGI in Perl?

由 一世执手 提交于 2019-12-12 05:17:03
问题 The CGI to read the data from merch.txt works but how can I put this in a table? HTML File: <form action="/cgi-bin/asst5/data.cgi" method="post"> <table border="2" cellspacing="5" cellpadding="5"> <tr> <td align="center">SKU: </td> <td><input type="text" name="code" size="15"></td> </tr> <tr> <td align="center">Name: </td> <td><input type="text" name="customer" size="15"></td> </tr> </table> </form> Data.CGI where data is accepted after it's been entered in the HTML my $sku = param('code');

I want to get information about how to read data from textView

由 China☆狼群 提交于 2019-12-12 03:39:05
问题 i am building an android app in this I want to get information how to read data from textView and to send an http request i was not able to figure out what is to be done to make it work. Following is the code that i have used in intent section which will get the data from Edit text . Intent summeryPage = new Intent(Form_section.this ,summry_page.class); // ((routernBoltBeam)this.getApplication()).setFirstName(FirstName); summeryPage.putExtra("fname",fName.getText().toString()); summeryPage

Pandas: parse merged header columns from Excel

由 ε祈祈猫儿з 提交于 2019-11-28 06:39:10
The data in excel sheets is stored as follows: Area | Product1 | Product2 | Product3 | sales|sales.Value| sales |sales.Value | sales |sales.Value Location1 | 20 | 20000 | 25 | 10000 | 200 | 100 Location2 | 30 | 30000 | 3 | 12300 | 213 | 10 the product name is a merge of 2 cells of two rows "no of sales" and "sales value" for each of 1000 or so areas for a given month. Similarly there are separate files for each month for the last 5 years. Further, new products have been added and removed in different months. So a different month file might look like: Area | Product1 | Product4 | Product3 Can
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