我正在学习html,css和twitter bootstrap.
<div id="button" style=" position:absolute;top:450px; left:350px;">
<p>
<a href="https://docs.google.com/forms/d/1Exo4u2iRpChj-
Wg9K5HxteMeoVE1uee0fQKBWiuYYiw/viewform?pli=1" class="btn btn-primary btn-
large">Search
</a>
</p>
</div>
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我想增加这个按钮的字体大小,从而使它更大.有人可以帮我这个吗?
谢谢!
我正在我的游戏的说明屏幕上工作,并希望向用户显示他们应该点击屏幕的某个区域.
所以我想在哪里展示动画
1)手指伸缩进出屏幕,然后 - 工作正常 -
2)改变不透明度的矩形(显示在那里点击)然后 - 需要帮助 -
3)文字闪烁,说"点击这里" - 需要帮助 -
对于1),我有这个(工作正常):
finger = SKSpriteNode(texture: fingerTxt)
finger.position = CGPoint(x: 330, y: 450)
finger.zPosition = 10
InstHolderNode.addChild(finger)
let fingerTapScaleDown = SKAction.scale(by: 0.6, duration: 0.7)
let fingerTapScaleUp = SKAction.scale(by: 1.6, duration: 0.7)
let fingerScalingSequence = SKAction.sequence([fingerTapScaleDown,fingerTapScaleUp])
let fingerTapScaleForever = SKAction.repeatForever(fingerScalingSequence)
finger.run(fingerTapScaleForever)
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对于2),我有:
var rect = SKShapeNode(rectOf: CGSize(width: 150.0, height: frame.height * 2))
rect.position = CGPoint(x: 300, y: 100)
rect.fillColor = SKColor.brown
rect.alpha …Run Code Online (Sandbox Code Playgroud) 如果这是一个基本问题,请道歉:
我一直在尝试按照这里的教程在我的笔记本电脑上设置Python .据PIP,VIRTUALENV + VIRTUALENVWRAPPER字幕说
现在设置virtualenvwrapper:
1 $ export WORKON_HOME=$HOME/.virtualenvs
2 $ export MSYS_HOME=/c/msys/1.0
3 $ source /usr/local/bin/virtualenvwrapper.sh
Run Code Online (Sandbox Code Playgroud)上面的最后一行给出了以下错误:
$ source /usr/local/bin/virtualenvwrapper.sh
sh.exe": /usr/local/bin/virtualenvwrapper.sh: No such file or directory
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因此,当我测试我的设置时,我收到以下错误:
$ mkvirtualenv TestEnv
sh.exe": mkvirtualenv: command not found
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有人可以帮帮我吗?
这些都是在Win7笔记本电脑上.
谢谢.
我是二叉树的初学者,并且一直在通过算法书.我已经了解了BST的各种遍历方法(预订,后期订单等).
有人可以解释一下如何通过BST来计算离开的节点数(没有孩子)吗?
非常感谢!
我正在尝试按照本教程并在执行以下操作时出错:
(DataVizProject) $ pip install -r requirements.txt
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它给了我一个很大的错误日志,最后几行是:
C:\python\new-coder\dataviz\DataVizProj\build\numpy\numpy\distutils\system_info.
py:1422: UserWarning:
Lapack (http://www.netlib.org/lapack/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [lapack_src]) or by setting
the LAPACK_SRC environment variable.
warnings.warn(LapackSrcNotFoundError.__doc__)
error: Unable to find vcvarsall.bat
----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in C:\python\new-coder
\dataviz\DataVizProj\build\numpy
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我知道它不起作用,因为当我执行以下步骤时:
>>> import numpy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named …Run Code Online (Sandbox Code Playgroud) python ×2
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