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Mercurial (hg) commit only certain files
...les, using -X is more convenient.
E.g. given a repository containing "file_1", "file_2" and "file_3", the following are equivalent, but the latter is easier / faster to type:
hg commit file_1 file_2
hg commit -X file_3
sh...
数据结构与本地数据库 03：增删改与 TinyDB 恢复 · App Inventor 2 中文网
... 实例名
组件
本课配置
标签_标题
标签
Width=Fill parent；FontSize=24；TextColor=#183153；Text=知识卡片 · 第 3课
文本输入框_题目
文本输入框
Hint=卡片题目；Width=Fill parent；FontSiz...
Get the value of an instance variable given its name
...
The most idiomatic way to achieve this is:
some_object.instance_variable_get("@#{name}")
There is no need to use + or intern; Ruby will handle this just fine. However, if you find yourself reaching into another object and pulling out its ivar, there's a reasonably good ...
awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
share
|...
How can I replace every occurrence of a String in a file with PowerShell?
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(Get-Content file.txt) |
Foreach-Object {$_ -replace '\[MYID\]','MyValue'} |
Out-File file.txt
Note the parentheses around (Get-Content file.txt) is required:
Without the parenthesis the content is read, one line at a time, and flows down the pipeline until i...
Super-simple example of C# observer/observable with delegates
...Here's a simple example:
public class ObservableClass
{
private Int32 _Value;
public Int32 Value
{
get { return _Value; }
set
{
if (_Value != value)
{
_Value = value;
OnValueChanged();
}
...
git diff two files on same branch, same commit
...
vimdiff for the win! Thanks!
– d-_-b
Dec 20 '12 at 2:25
24
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Reading Xml with XmlReader in C#
...parsing code looks something like this:
public class Account
{
string _accountId;
string _nameOfKin;
Statements _statmentsAvailable;
public void ReadFromXml( XmlReader reader )
{
reader.MoveToContent();
// Read node attributes
_accountId = reader.GetAtt...
调研结论：File组件写log文件大小有上限吗？会无限增长吗？（附日志轮转方...
...案1：按日期分文件（最简单，推荐）
文件名带日期：log_20260922.txt。每天一个新文件，天然有上限，历史日志好定位。用 Clock 组件取当前日期拼进文件名即可。
方案2：按行数/条数轮转
App里维护一个计数器变量，每写一条+1...
How to change height of grouped UITableView header?
...
Return CGFLOAT_MIN instead of 0 for your desired section height.
Returning 0 causes UITableView to use a default value. This is
undocumented behavior. If you return a very small number, you
effectively get a zero-height header.
S...