大约有 37,000 项符合查询结果（耗时：0.0321秒） [XML]
How do I trim leading/trailing whitespace in a standard way?
Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution.
...
Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2
In ggplot2 how can I stop axis labels being abbreviated - e.g. 1e+00, 1e+01 along the x axis once plotted? Ideally, I want to force R to display the actual values which in this case would be 1,10 .
...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...还不够深入，所以写下了这篇文章。为了方便你把代码copy过去编译和调试，我把代码列在下面：#include <stdio.h>
struct str{
    int len;
    char s[0];
};
struct foo {
    struct str *a;
};
int main(int argc, char** argv) {
&n...
How to check if a variable exists in a FreeMarker template?
I have a Freemarker template which contains a bunch of placeholders for which values are supplied when the template is processed. I want to conditionally include part of the template if the userName variable is supplied, something like:
...
Calculating Pearson correlation and significance in Python
I am looking for a function that takes as input two lists, and returns the Pearson correlation , and the significance of the correlation.
...
Pointer arithmetic for void pointer in C
When a pointer to a particular type (say int , char , float , ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, how does it get to point x bytes ahead? How does the compiler know to add x to value of ...
undefined method `source_index' for Gem:Module (NoMethodError)
I'm running a Rails 2.3.5 application and upon running script/server I am shown the following:
5 Answers
...
JavaScript equivalent of PHP's in_array()
Is there a way in JavaScript to compare values from one array and see if it is in another array?
20 Answers
...
Defining a HTML template to append using JQuery
I have got an array which I am looping through. Every time a condition is true, I want to append a copy of the HTML code below to a container element with some values.
...
What is the difference between '>' and a space in CSS selectors?
What's the point using this syntax
5 Answers
5
...