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In Vim, how do I apply a macro to a set of lines?
I have a file with a bunch of lines. I have recorded a macro that performs an operation on a single line. I want to repeat that macro on all of the remaining lines in the file. Is there a quick way to do this?
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Why do we need a fieldset tag?
Why do we need a <fieldset> tag? Whatever purpose it serves is probably a subset of the form tag.
10 Answers
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Remove a symlink to a directory
I have a symlink to an important directory. I want to get rid of that symlink, while keeping the directory behind it.
9 A...
How can I exclude $(this) from a jQuery selector?
I have something like this:
4 Answers
4
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C++形参与实参的区别（实例解析） - C/C++ - 清泛网 - 专注C/C++及内核技术
...=*x;
*x=*y;
*y=tmp;
printf("Exchg3:x=%d,y=%d\n",*x,*y);
}
void main()
{
int a=4,b=6;
Exchg1 (a,b) ;
printf("a=%d,b=%d\n",a,b);
Exchg2 (a,b);
printf("a=%d,b=%d\n",a,b);
Exchg3(&a,&b) ;
printf("a=%d,b=%d\n",a,b);
}
这里Exchg1函数被调用的时候，并没有成功交...
What is 'Context' on Android?
In Android programming, what exactly is a Context class and what is it used for?
30 Answers
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How to define “type disjunction” (union types)?
One way that has been suggested to deal with double definitions of overloaded methods is to replace overloading with pattern matching:
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In Python, what is the difference between “.append()” and “+= []”?
What is the difference between:
12 Answers
12
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Passing an integer by reference in Python
How can I pass an integer by reference in Python?
11 Answers
11
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Are tuples more efficient than lists in Python?
Is there any performance difference between tuples and lists when it comes to instantiation and retrieval of elements?
8 A...