大约有 44,000 项符合查询结果（耗时：0.0675秒） [XML]
View array in Visual Studio debugger? [duplicate]
...ements 0-(N-1) where N is the number you add after the comma.
For example if pArray is the array, type pArray,10 in the watch window.
share
|
improve this answer
|
follow
...
Test whether string is a valid integer
... trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it apart...
Selecting empty text input using jQuery
How do I identify empty textboxes using jQuery? I would like to do it using selectors if it is at all possible. Also, I must select on id since in the real code where I want to use this I don't want to select all text inputs.
...
SQL Server add auto increment primary key to existing table
...TABLE dbo.YourTable
ADD CONSTRAINT PK_YourTable
PRIMARY KEY(ID)
or if you prefer to do all in one step:
ALTER TABLE dbo.YourTable
ADD ID INT IDENTITY
CONSTRAINT PK_YourTable PRIMARY KEY CLUSTERED
share
...
setting an environment variable in virtualenv
...
Very funny gif :D
– chachan
Nov 4 '14 at 22:47
3
...
How to revert initial git commit?
...tial commit, but keeps all previously commited changes added to the index. If you want to also remove those changes, just execute a following git reset --hard. Even if incomplete, this answer is indeed the best one, so avoid using rm -fr .git (unless you know what you are doing).
...
What is the difference between sites-enabled and sites-available directory?
...
The difference is that virtual sites listed in the sites-enabled directory are served by apache. In the sites-available directory there are the virtual sites that exist on your server but people can't access them because they are ...
MySQL: Can't create table (errno: 150)
...
From the MySQL - FOREIGN KEY Constraints Documentation:
If you re-create a table that was dropped, it must have a definition that conforms to the foreign key constraints referencing it. It must have the correct column names and types, and it must have indexes on the referenced key...
How to print a float with 2 decimal places in Java?
...esentation of a floating-point number (f) from the start of the format specifier (%).
There are other conversion characters you can use besides f:
d: decimal integer
o: octal integer
e: floating-point in scientific notation
...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
It's a sad fact of life on Scala that if you instantiate a List[Int], you can verify that your instance is a List, and you can verify that any individual element of it is an Int, but not that it is a List[Int], as can be easily verified:
...