大约有 47,000 项符合查询结果（耗时：0.0653秒） [XML]
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...That gives you nice animations for the cells appearing and
disappearing. Now implement the following table view delegate method:
- (float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 1 && indexPath.row == 1) { // This i...
How many GCC optimization levels are there?
...00' '-v' '-mtune=generic' '-march=x86-64'
/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1 [[noise]] hello_world.c -O100 -o /tmp/ccetECB5.
so -O was forwarded to both cc1 and collect2.
O in common.opt
common.opt is a GCC specific CLI option description format described in the internals doc...
How to test if a dictionary contains a specific key? [duplicate]
...d it helped a lot, but I was wondering - are you able to accept the answer now, 4.5yrs later?:) Or it can't be marked anymore due to the duplicate label?
– Michal
Dec 18 '15 at 14:24
...
Do HTML5 Script tag need type=“javascript”? [duplicate]
...
No, it's now officially useless.
The type attribute gives the language of the script or format of the
data. If the attribute is present, its value must be a valid MIME
type. The charset parameter must not be specified. The def...
How to test if parameters exist in rails
...I, but I'm sure that's safe enough. I've been calling params.to_h.key? for now.
– stephen.hanson
Nov 9 '16 at 19:38
|
show 12 more comments
...
What is “rvalue reference for *this”?
...n"; }
};
int main(){
test t;
t.f(); // OK
test().f(); // OK too
}
Now, onto why @Nicol's answer is atleast partly wrong. He says:
Note that this declaration changes the type of *this.
That is wrong, *this is always an lvalue:
§5.3.1 [expr.unary.op] p1
The unary * operator performs indir...
What's the difference between deadlock and livelock?
...Assume A receives (or already has) r1, and B receives (or already has) r2. Now each try to get the resource the other has, without any timeout. A is blocked because B holds r2, and B is blocked because A holds r1. Each process is blocked and thus cannot release the resource the other wants, causing ...
Array_merge versus + [duplicate]
...It causes a lot of issues and premature hair-loss for others if you don't know exactly what it does. Excellent answer too!
– Matt Fletcher
Mar 19 '13 at 10:16
4
...
How to redirect both stdout and stderr to a file [duplicate]
...
&> now works as expected on OS X 10.11.1 (seems to be bash 3.2), just for the record.
– LiberalArtist
Nov 28 '15 at 20:32
...
How to find largest objects in a SQL Server database?
...
Excellent, thank you! Now, that I've narrowed down my largest object to a table containing a lot of binary data, anyway to figure out which of the rows of binary data are the largest?
– jamesaharvey
Jan 19 '1...