大约有 47,000 项符合查询结果(耗时:0.0601秒) [XML]
Version number comparison in Python
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Remove the uninteresting part of the string (trailing zeroes and dots), and then compare the lists of numbers.
import re
def mycmp(version1, version2):
def normalize(v):
return [int(x) for x in re.sub(r'(\.0+)*$','', v).split(".")]
return cmp(n...
Why does HTML5 form-validation allow emails without a dot?
...ould have a ^, denoting it should start matching from the beginning of the string and also accept upper case: ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+$
– Kohjah Breese
Dec 6 '18 at 14:18
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Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
...agnostic
{
[Key]
public Guid DiagnosticID { get; set; }
public string ApplicationName { get; set; }
public DateTime DiagnosticTime { get; set; }
public string Data { get; set; }
}
If you like you could mark all entities as protected inside the main ApplicationDbContext, then cr...
Best way to serialize an NSData into a hexadeximal string
...king for a nice-cocoa way to serialize an NSData object into a hexadecimal string. The idea is to serialize the deviceToken used for notification before sending it to my server.
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Does Python support short-circuiting?
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In other words, if the return value from raw_input is true (not an empty string), it is assigned to name (nothing changes); otherwise, the default '<unknown>' is assigned to name.
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im...
String literals: Where do they go?
I am interested in where string literals get allocated/stored.
8 Answers
8
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How to convert a string or integer to binary in Ruby?
How do you create integers 0..9 and math operators + - * / in to binary strings.
For example:
6 Answers
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Unable to generate an explicit migration in entity framework
...ure to check your startup project is one with your db context's connection string. I had this problem when I temporarily changed my startup project and didn't realize that the other project didn't have the same connection string.
– Gage Trader
Aug 3 '16 at 21:5...
Make first letter of a string upper case (with maximum performance)
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Updated to C# 8
public static class StringExtensions
{
public static string FirstCharToUpper(this string input) =>
input switch
{
null => throw new ArgumentNullException(nameof(input)),
"" => throw new Argume...
String comparison using '==' vs. 'strcmp()'
...=== only returns true or false, it doesn't tell you which is the "greater" string.
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