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汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...汇编出简单的COM文件，所以DEBUG编写的程序一定要由地址 100h（COM文件要求）开始才合法。FOLLOW ME，SETP BY SETP（步步回车）：
输入 A100 ； 从DS：100开始汇编
2.输入 MOV DL,1 ； 将数值 01h 装入 DL 寄存器
3.输入 MOV AH,2...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...double型，64bits，你不必担心Lua处理浮点数会慢（除非大于100,000,000,000,000），或是会有精度问题。
你可以以如下的方式表示数字，0x开头的16进制和C是很像的。
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num = 1024
num = 3.0
num = 3.1416...
Batch script loop
I need to execute a command 100-200 times, and so far my research indicates that I would either have to copy/paste 100 copies of this command, OR use a for loop, but the for loop expects a list of items, hence I would need 200 files to operate on, or a list of 200 items, defeating the point.
...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...justBrightness(ColorMatrix cm, float value) {
value = cleanValue(value,100);
if (value == 0) {
return;
}
float[] mat = new float[]
{
1,0,0,0,value,
0,1,0,0,value,
0,0,1,0,value,
0,0,0,1,0,
0,0,0,0,1
};
cm.postConcat(new Co...
What is a database transaction?
...
Here's a simple explanation. You need to transfer 100 bucks from account A to account B. You can either do:
accountA -= 100;
accountB += 100;
or
accountB += 100;
accountA -= 100;
If something goes wrong between the first and the second operation in the pair you have a ...
html5 - canvas element - Multiple layers
...r.
<div style="position: relative;">
<canvas id="layer1" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 0;"></canvas>
<canvas id="layer2" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 1;"></canvas>...
Adding an arbitrary line to a matplotlib plot in ipython notebook
...dom.seed(5)
x = np.arange(1, 101)
y = 20 + 3 * x + np.random.normal(0, 60, 100)
plt.plot(x, y, "o")
# draw vertical line from (70,100) to (70, 250)
plt.plot([70, 70], [100, 250], 'k-', lw=2)
# draw diagonal line from (70, 90) to (90, 200)
plt.plot([70, 90], [90, 200], 'k-')
plt.show()
...
How to automatically crop and center an image
... the cropped dimensions.
Basic example
.center-cropped {
width: 100px;
height: 100px;
background-position: center center;
background-repeat: no-repeat;
}
<div class="center-cropped"
style="background-image: url('http://placehold.it/200x200');">
</div>
...
How to apply two CSS classes to a single element
...are in
effect.
.color
{background-color:#21B286;}
.box
{
width:"100%";
height:"100px";
font-size: 16px;
text-align:center;
line-height:1.19em;
}
.box.color
{
width:"100%";
height:"100px";
font-size:16px;
color:#000000;
text-align:center;
}
<div class="box color"&g...
“Cloning” row or column vectors
...
Upvote! On my system, for a vector with 10000 elements repeated 1000 times, the tile method is 19.5 times faster than the method in the currently accepted answer (using the multiplication-operator-method).
– Dr. Jan-Philip Gehrcke
...