大约有 48,000 项符合查询结果（耗时：0.0608秒） [XML]
Insert line after first match using sed
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edited Jul 13 '18 at 10:12
Duncan X Simpson
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an...
HTML if image is not found
...age.jpg" onerror="this.onerror=null; this.src='Default.jpg'" alt="" width="100" height="120">
onerror is a good thing for you :)
Just change the image file name and try yourself.
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impro...
When restoring a backup, how do I disconnect all active connections?
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10 Answers
10
Active
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How do I fetch lines before/after the grep result in bash?
...n use the -B and -A to print lines before and after the match.
grep -i -B 10 'error' data
Will print the 10 lines before the match, including the matching line itself.
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How do I typedef a function pointer with the C++11 using syntax?
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10
@rubenvb: using FunctionPtr = AddPointer<void()>; ;)
– Xeo
May 11 '13 at 15:52
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What does “static” mean in C?
... so here's an example:
#include <stdio.h>
void foo()
{
int a = 10;
static int sa = 10;
a += 5;
sa += 5;
printf("a = %d, sa = %d\n", a, sa);
}
int main()
{
int i;
for (i = 0; i < 10; ++i)
foo();
}
This prints:
a = 15, sa = 15
a = 15, sa = 20
a = ...
“static const” vs “#define” vs “enum”
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10
Its better to use #if than #ifdef , but otherwise I agree. +1.
– Tim Post♦
Nov 4 '09 at 15:32
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Reading a binary file with python
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answered Jan 3 '12 at 10:46
geccogecco
14.3k99 gold badges4444 silver badges6868 bronze badges
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In c++ what does a tilde “~” before a function name signify?
...tructor name.
– Klaim
Jun 26 '11 at 10:07
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Disable XML validation in Eclipse
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kevinarpekevinarpe
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