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App Inventor 2 向心力实验App - 探究向心力F与角速度ω、半径r、质量m的关...
...半径 r基础组件Clock定时采集数据基础组件File数据导出（CSV）内置组件
五、积木块实现
5.1 传感器数据采集
当 时钟1.计时器执行 时
设置 全局变量 当前加速度X 为 加速度传感器1.加速度X
设置 全局变量 ...
How can I format a number into a string with leading zeros?
...d Mar 24 '11 at 11:26
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
...
How to split() a delimited string to a List
...
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...
make_unique and perfect forwarding
...ered Mar 11 '12 at 19:06
Johan RådeJohan Råde
17.7k1919 gold badges5959 silver badges103103 bronze badges
...
SQL command to display history of queries
I would like to display my executed sql command history in my MYSQL Query Browser. What is the sql statement for displaying history?
...
Understanding Python's “is” operator
...floats and larger ints aren't interned.
– Magnus Lyckå
Sep 21 '17 at 13:56
2
@MagnusLyckå there...
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 to prevent http file caching in Apache httpd (MAMP)
... 30 '12 at 15:30
Charlie RudenstålCharlie Rudenstål
4,10811 gold badge1111 silver badges1515 bronze badges
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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...
How do I do a case-insensitive string comparison?
...trings in all instances and therefore the normalization needs to be done ('å' vs. 'å'). D145 introduces "canonical caseless matching":
import unicodedata
def NFD(text):
return unicodedata.normalize('NFD', text)
def canonical_caseless(text):
return NFD(NFD(text).casefold())
NFD() is c...