大约有 16,000 项符合查询结果（耗时：0.0278秒） [XML]
Throw HttpResponseException or return Request.CreateErrorResponse?
...y be correct to turn these into 400, yet if you have a filter that blanket converts all ArgumentExceptions to 400, the only way to avoid that is to catch the exception in the controller and re-throw something else, which seems to defeat the purpose of uniform exception handling in a filter or simila...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
... probably have plain Model data objects like these:
class CardModel
{
int Score;
SuitEnum Suit;
CardEnum CardValue;
}
class PlayerModel
{
ObservableCollection<Card> FaceUpCards;
ObservableCollection<Card> FaceDownCards;
int CurrentScore;
bool IsBust
{
...
What is a magic number, and why is it bad? [closed]
...
This should be refactored to:
public class Foo {
public static final int MAX_PASSWORD_SIZE = 7;
public void setPassword(String password) {
if (password.length() > MAX_PASSWORD_SIZE) {
throw new InvalidArgumentException("password");
}
}
}
It improve...
Suppressing “is never used” and “is never assigned to” warnings in C#
...
awesome thanks - this is what I needed. I'm using JsonConvert.DeserializeObject and I'm deserializing into a public class that just has all of the properties exposed so that I know what will be returned. Just making it a public class that's empty with all public strings is nice ...
What would a “frozen dict” be?
... relying on the good behavior of future users and developers.
It's easy to convert back and forth between a regular dictionary and a frozen dictionary. FrozenDict(orig_dict) --> frozen dictionary. dict(frozen_dict) --> regular dict.
Update Jan 21 2015: The original piece of code I posted ...
When and why would you seal a class?
...row error; but when sealed is used the compiler throws error that it can't convert. Sealed class brings additional code access security.
https://www.codeproject.com/Articles/239939/Csharp-Tweaks-Why-to-use-the-sealed-keyword-on-cla
...
Is there YAML syntax for sharing part of a list or map?
...wn their lists of sites as YAML lists, then want to merge them and have to convert the whole thing to a set AND remember to explicitly tag it as a set... I have a couple of other standardised post-processing things along with MERGE anyway. Thanks for your help though!
– Ben
...
FAT32系统中长文件名的存储 - C/C++ - 清泛网 - 专注C/C++及内核技术
...字符串shortname[],校验和用chknum表示。得到过程如下：
int i，j,chknum=0;
for (i=11; i>0; i--)
chksum = ((chksum & 1) ? 0x80 : 0) + (chksum >> 1) + shortname[j++];
如果通过短文件名计算出来的校验和与长文件名中的0xD偏移处数据不相等...
How to remove all white spaces in java [duplicate]
...racters etc). You need to escape the backslash in Java so the regex turns into \\s. Also, since Strings are immutable it is important that you assign the return value of the regex to a.
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count the frequency that a value occurs in a dataframe column
...re
In [38]:
df['a'].value_counts()
Out[38]:
b 3
a 2
s 2
dtype: int64
If you wanted to add frequency back to the original dataframe use transform to return an aligned index:
In [41]:
df['freq'] = df.groupby('a')['a'].transform('count')
df
Out[41]:
a freq
0 a 2
1 b 3
2 s ...