大约有 44,921 项符合查询结果（耗时：0.0382秒） [XML]
java.util.Date vs java.sql.Date
...
Congratulations, you've hit my favorite pet peeve with JDBC: Date class handling.
Basically databases usually support at least three forms of datetime fields which are date, time and timestamp. Each of these have a corresponding class in JDBC and ea...
Are there any smart cases of runtime code modification?
Can you think of any legitimate (smart) uses for runtime code modification (program modifying it's own code at runtime)?
1...
Why does python use 'else' after for and while loops?
...
It's a strange construct even to seasoned Python coders. When used in conjunction with for-loops it basically means "find some item in the iterable, else if none was found do ...". As in:
found_obj = None
for obj in objects:...
Why should I use version control? [closed]
I was reading a blog where the writer said this
20 Answers
20
...
Why must a lambda expression be cast when supplied as a plain Delegate parameter
...
A lambda expression can either be converted to a delegate type or an expression tree - but it has to know which delegate type. Just knowing the signature isn't enough. For instance, suppose I have:
public delegate void Action1();
public delegate voi...
Transitions on the CSS display property
...
You can concatenate two transitions or more, and visibility is what comes handy this time.
div {
border: 1px solid #eee;
}
div > ul {
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s linear;
}
div:hover >...
Is there a way to style a TextView to uppercase all of its letters?
...sign a xml attribute or style to a TextView that will make whatever text it has in ALL CAPITAL LETTERS.
7 Answers
...
How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
...
The
(condition) ? /* value to return if condition is true */
: /* value to return if condition is false */ ;
syntax is not a "shorthand if" operator (the ? is called the conditional operator) because you cannot execute ...
SQL Client for Mac OS X that works with MS SQL Server [closed]
...nect to a remote SQL server using Mac OS X? I don't really need a GUI, but it would be nice to have for the color coding and resultset grid. I'd rather not have to use a VM.
...
Sending email through Gmail SMTP server with C#
For some reason neither the accepted answer nor any others work for me for " Sending email in .NET through Gmail ". Why would they not work?
...