大约有 16,000 项符合查询结果(耗时:0.0243秒) [XML]

https://stackoverflow.com/ques... 

How to identify whether a file is normal file or directory

...standard library, which provides an object oriented approach to handle filesystem paths. The relavant methods would be .is_file() and .is_dir(): In [1]: from pathlib import Path In [2]: p = Path('/usr') In [3]: p.is_file() Out[3]: False In [4]: p.is_dir() Out[4]: True In [5]: q = p / 'bin' / 'v...
https://stackoverflow.com/ques... 

Create a date from day month and year with T-SQL

I am trying to convert a date with individual parts such as 12, 1, 2007 into a datetime in SQL Server 2005. I have tried the following: ...
https://stackoverflow.com/ques... 

Get integer value from string in swift

...) method as part of String. So this Int constructor is now the only way to convert strings to ints. – Morgan Wilde Jul 20 '15 at 22:41 1 ...
https://stackoverflow.com/ques... 

How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

...ight give you unexpected results. To answer one of the side questions, to convert a file descriptor to a FILE pointer, use fdopen(3) share | improve this answer | follow ...
https://stackoverflow.com/ques... 

How do I convert an integer to string as part of a PostgreSQL query?

How do I convert an integer to string as part of a PostgreSQL query? 3 Answers 3 ...
https://stackoverflow.com/ques... 

How to delete an element from an array in C#

... You can also convert your array to a list and call remove on the list. You can then convert back to your array. int[] numbers = {1, 3, 4, 9, 2}; var numbersList = numbers.ToList(); numbersList.Remove(4); ...
https://stackoverflow.com/ques... 

How do I get a human-readable file size in bytes abbreviation using .NET?

...return "0" + suf[0]; long bytes = Math.Abs(byteCount); int place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1024))); double num = Math.Round(bytes / Math.Pow(1024, place), 1); return (Math.Sign(byteCount) * num).ToString() + suf[place]; } Also in c#, but should be a snap to conve...
https://stackoverflow.com/ques... 

How to convert an object to a byte array in C#

... To convert an object to a byte array: // Convert an object to a byte array public static byte[] ObjectToByteArray(Object obj) { BinaryFormatter bf = new BinaryFormatter(); using (var ms = new MemoryStream()) { ...
https://stackoverflow.com/ques... 

Create Pandas DataFrame from a string

...input_string df = pd.DataFrame([x.split(';') for x in data.split('\n')]) print(df) share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

delegate keyword vs. lambda notation

... Even longer answer - there are fiddly reasons why they're convertible to different delegate types, too :) – Jon Skeet Nov 18 '08 at 19:33 ...