大约有 35,476 项符合查询结果（耗时：0.0529秒） [XML]
How to change the default charset of a MySQL table?
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203
If you want to change the table default character set and all character columns to a new chara...
Is it possible to use global variables in Rust?
... "A static string";
static SOME_STRUCT: MyStruct = MyStruct {
number: 10,
string: "Some string",
};
static mut db: Option<sqlite::Connection> = None;
fn main() {
println!("{}", SOME_INT);
println!("{}", SOME_STR);
println!("{}", SOME_STRUCT.number);
println!("{}", SOME...
iPad/iPhone hover problem causes the user to double click a link
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208
+50
Haven't ...
Is there an R function for finding the index of an element in a vector?
...
The function match works on vectors :
x <- sample(1:10)
x
# [1] 4 5 9 3 8 1 6 10 7 2
match(c(4,8),x)
# [1] 1 5
match only returns the first encounter of a match, as you requested. It returns the position in the second argument of the values in the first argument.
Fo...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
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120
To answer my own question, this functionality has been added to pandas in the meantime. Starting...
What's the best way to communicate between view controllers?
...a controller, unless it's strictly "presentation" data.
Second, see page 10 of the Stanford presentation for an example of how to programmatically push a controller onto the navigation controller. For an example of how to do this "visually" using Interface Builder, take a look at this tutorial.
Th...
Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
...y than the following to check to see if a string is nil OR has a length of 0 in Ruby?
16 Answers
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Select elements by attribute
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190
Do you mean can you select them? If so, then yes:
$(":checkbox[myattr]")
...
Convert boolean to int in Java
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600
int myInt = myBoolean ? 1 : 0;
^^
PS : true = 1 and false = 0
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await vs Task.Wait - Deadlock?
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Mario Sannum
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answered Oct 30 '12 at 14:19
Stephen ClearySte...