大约有 31,840 项符合查询结果（耗时：0.0726秒） [XML]
How can I convert comma separated string into a List
...
Here is one way of doing it:
List<int> TagIds = tags.Split(',').Select(int.Parse).ToList();
share
|
improve this answer
...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...thon installed, /usr/bin/env will ensure the interpreter used is the first one on your environment's $PATH. The alternative would be to hardcode something like #!/usr/bin/python; that's ok, but less flexible.
In Unix, an executable file that's meant to be interpreted can indicate what interpreter t...
Why does Enumerable.All return true for an empty sequence? [duplicate]
... thing I check when a function doesn't behave as I expect. Invariably someone with a huge reputation like Jon Skeet not only finds the pertinent snippet of documentation but also explains why my expectations were wrong to begin with. We're spoiled by SO...
– ThisGuy
...
What is the difference between syntax and semantics in programming languages?
...ion at address x".
If x is a scalar, the meaning of the statement is "add one to the value at address x and store the result into the location at address x".
Finally, note that some semantics cannot be determined at compile-time and must therefore must be evaluated at run-time. In the ++ operator...
Why is processing a sorted array slower than an unsorted array?
...cy. A memory access can stall the CPU for 50-200 cycles. Given that number one could expect the program to become >10x slower when introducing random memory accesses.
share
|
improve this answer
...
Finding Key associated with max Value in a Java Map
...
+1: You can have more than one key with the same maximum value. This loop will give you the first one it finds.
– Peter Lawrey
May 6 '11 at 12:19
...
How to convert an int value to string in Go?
...do the job. But Sprintf will use the package reflect, and it will allocate one more object, so it's not an efficient choice.
share
|
improve this answer
|
follow
...
What is a coroutine?
...ollaborative: at any given time, a program with coroutines is running only one of its coroutines, and this running coroutine suspends its execution only when it explicitly requests to be suspended.
So the point is: Coroutines are "collaborative". Even in multi-core system, there is only one coro...
When to use in vs ref vs out
Someone asked me the other day when they should use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothet...
'git add --patch' to include new files?
...h an empty new file, git will not be able to patch it and skip to the next one.
share
|
improve this answer
|
follow
|
...