大约有 20,000 项符合查询结果（耗时：0.0486秒） [XML]
How do I check if a file exists in Java?
... DVK
117k2828 gold badges194194 silver badges306306 bronze badges
answered Nov 29 '09 at 20:35
Sean A.O. HarneySean A.O. Harney
...
How to force file download with PHP
... }
$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
} else {
$new_length=$size;
header("Content-Length: ".$size);
}
...
How to grep a text file which contains some binary data?
...
– tommy.carstensen
Jan 3 '16 at 17:06
Note that this works in a pipeline as well. E.g. set | cat -v | grep variable
...
MySQL “NOT IN” query
...-----+
| count(*) |
+----------+
| 139 |
+----------+
1 row in set (0.06 sec)
mysql> select count(*) from TABLE_A where NOT EXISTS (select * FROM TABLE_B WHERE TABLE_B.Fkey = TABLE_A.Pkey );
+----------+
| count(*) |
+----------+
| 139 |
+----------+
1 row in set (0.06 sec)
mysql> ...
Git cherry pick vs rebase
...ups.
– Pablo Jomer
Dec 28 '12 at 17:06
If an interactive rebase was done instead, leaving out one or more commits, wha...
Compression/Decompression string with C#
... ?
– MonsterMMORPG
Sep 14 '14 at 14:06
1
Note that this fails (unzipped-string != original) in ca...
What exactly does git's “rebase --preserve-merges” do (and why?)
...e commit?
– Nils_M
Dec 10 '15 at 12:06
|
show 7 more comme...
Namespace and class with the same name?
...ice.
– T.J. Crowder
Feb 6 '16 at 15:06
2
...
How do I get a UTC Timestamp in JavaScript?
... DCoderDCoder
12.2k44 gold badges4040 silver badges6060 bronze badges
1
...
Programmatically set the initial view controller using Storyboards
...ter on.
– Chengjiong
Aug 4 '15 at 1:06
this is really useful if you want to instantiate to login/register or something...