大约有 40,700 项符合查询结果（耗时：0.0378秒） [XML]
Wrap long lines in Python [duplicate]
...
def fun():
print(('{0} Here is a really long '
'sentence with {1}').format(3, 5))
Adjacent string literals are concatenated at compile time, just as in C. http://docs.python.org/reference/lexical_analysis.html#string-literal-concatenation i...
In C#, why is String a reference type that behaves like a value type?
A String is a reference type even though it has most of the characteristics of a value type such as being immutable and having == overloaded to compare the text rather than making sure they reference the same object.
...
Why is it possible to recover from a StackOverflowError?
I'm surprised at how it is possible to continue execution even after a StackOverflowError has occurred in Java.
5 Answers...
C++11 rvalues and move semantics confusion (return statement)
...p;rval_ref = return_vector();
The first example returns a temporary which is caught by rval_ref. That temporary will have its life extended beyond the rval_ref definition and you can use it as if you had caught it by value. This is very similar to the following:
const std::vector<int>& r...
Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
I have a problem when data is null and the warning has appear when the result is display.
How to solve this problem?. How to change the null data to 0 when no data in the table?.
...
How can I view MSIL / CIL generated by C# compiler? Why is it called assembly?
I'm new to .NET C# programming. I'm following few books. It is said that instead of compiling it directly to binary code (Native code). High level code is converted into intermediate language (called MSIL aka CIL). But when I compile, I get an exe/Dll file.
...
abort, terminate or exit?
... the exceptions you can't handle in main() and simply return from there. This means that you are guaranteed that stack unwinding happens correctly and all destructors are called. In other words:
int main() {
try {
// your stuff
}
catch( ... ) {
return 1; // or whatever
...
What is this Javascript “require”?
...trying to get Javascript to read/write to a PostgreSQL database. I found this project on github. I was able to get the following sample code to run in node.
...
Service vs IntentService in the Android platform
...
Tejas Lagvankar wrote a nice post about this subject.
Below are some key differences between Service and IntentService.
When to use?
The Service can be used in tasks with no UI, but shouldn't be too long. If you need to perform long tasks, you must use threads wi...