大约有 5,500 项符合查询结果（耗时：0.0207秒） [XML]
How to disable margin-collapsing?
...ildren {
margin-top: 50px;
background-color: lime;
width: 100px;
height: 100px;
}
<h3>Border collapsing</h3>
<div class="parent">
<div class="children">
</div>
</div>
<h3>No border collapsing</h3>
<div class="parent...
Exact time measurement for performance testing [duplicate]
... }
public static void BenchmarkTime(Action action, int iterations = 10000)
{
Benchmark<TimeWatch>(action, iterations);
}
static void Benchmark<T>(Action action, int iterations) where T : IStopwatch, new()
{
//clean Garbage
GC.Collect();
...
Creating an R dataframe row-by-row
...ith automatic column name
df<-data.frame(
t(data.frame(c(1,"a",100),c(2,"b",200),c(3,"c",300)))
,row.names = NULL,stringsAsFactors = FALSE
)
With column name
df<-setNames(
data.frame(
t(data.frame(c(1,"a",100),c(2,"b",200),c(3,"c",300)))
...
How do JavaScript closures work?
...
+100
A closure is a pairing of:
A function, and
A reference to that function's outer scope (lexical environment)
A lexical environment ...
Quickly create a large file on a Linux system
...
+100
This is a common question -- especially in today's environment of virtual environments. Unfortunately, the answer is not as straight...
What is the difference between and ? [duplicate]
...UTF-8">
</head>
<body>
<img src="candle.gif" height="100" width="50"/> <br />
<p><b>As the candle burns,so do I</b></p>
</body>
After running both the JSP files you see the same output and think if there was any difference between ...
How to put more than 1000 values into an Oracle IN clause [duplicate]
Is there any way to get around the Oracle 10g limitation of 1000 items in a static IN clause? I have a comma delimited list of many of IDs that I want to use in an IN clause, Sometimes this list can exceed 1000 items, at which point Oracle throws an error. The query is similar to this...
...
Why do people hate SQL cursors so much? [closed]
...r loops with joins and a single, flat cursor loop can make programs run in 100th the time. [They thought I was the god of optimization. All I did was replace nested loops with joins. Still used cursors.]
This confusion often leads to an indictment of cursors. However, it isn't the cursor, it's ...
horizontal scrollbar on top and bottom of table
...}
.wrapper1 {height: 20px; }
.wrapper2 {height: 200px; }
.div1 {
width:1000px;
height: 20px;
}
.div2 {
width:1000px;
height: 200px;
background-color: #88FF88;
overflow: auto;
}
JS:
$(function(){
$(".wrapper1").scroll(function(){
$(".wrapper2").scrollLeft($(".wrapper1").scroll...
How do I run Redis on Windows?
... version of Redis can be found here. This repository provides you with 3.2.100 version (current is 3.2) whereas the most upvoted answer gives you only 2.4.6 version and the last update to the repo was 2 years ago.
The installation is straightforward: just copy everything from the archive to any fol...