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MIT已发布v2.75版本，中文网已同步升级最新版本 - App Inventor 2 中文网 -...
...习和使用，才能与大家分享。
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列表显示框组件有进一步的改进在上个版本（2022）中，列表显示框可以同时显示图片、主项及细项三部分内容，这个版本延续了这一功能，并在显示样式方面做了一些改进...
UnicodeDecodeError, invalid continuation byte
...
I had the same error when I tried to open a CSV file by pandas.read_csv
method.
The solution was change the encoding to latin-1:
pd.read_csv('ml-100k/u.item', sep='|', names=m_cols , encoding='latin-1')
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Keep only date part when using pandas.to_datetime
...es to datetime.date or datetime64[D] so that, when I write the data to CSV, the dates are not appended with 00:00:00 . I know I can convert the type manually element-by-element:
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What is the better API to Reading Excel sheets in java - JXL or Apache POI [closed]
...PIs is simpler to read/write/edit excel sheets ?
Do these APIs not support CSV extensions ?
4 Answers
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IRXmitter红外发射器扩展 · App Inventor 2 中文网
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数据包模式
要发送的IR代码由一个数字列表表示，每个数字交替表示Mark（以设定频率发送IR信号）和Space（信号之间的暂停）的持续时间，单位为微秒。代码总是以Mark开始。
属性
具有红...
Import pandas dataframe column as string not int
I would like to import the following csv as strings not as int64. Pandas read_csv automatically converts it to int64, but I need this column as string.
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How to split() a delimited string to a List
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This will read a csv file and it includes a csv line splitter that handles double quotes and it can read even if excel has it open.
public List<Dictionary<string, string>> LoadCsvAsDictionary(string path)
{
var re...
Django - how to create a file and save it to a model's FileField?
...s certainly a good solution, but here is the way I went about generating a CSV and serving it from a view.
Thought it was worth while putting this here as it took me a little bit of fiddling to get all the desirable behaviour (overwrite existing file, storing to the right spot, not creating duplica...
How can I convert comma separated string into a List
...ad of throwing an exception), here's something that uses TryParse:
string csv = "1,2,3,4,a,5";
int mos = 0;
var intList = csv.Split(',')
.Select(m => { int.TryParse(m, out mos); return mos; })
.Where(m => m != 0)
.ToList();
//return...
Convert floats to ints in Pandas?
I've been working with data imported from a CSV. Pandas changed some columns to float, so now the numbers in these columns get displayed as floating points! However, I need them to be displayed as integers, or, without comma. Is there a way to convert them to integers or not display the comma?
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