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问题 I'm on Windows :-/ and in my script i've: $ENV{'Powmig Path'}powermt That give me: C:\Program\ Files\EMC\PowerPath\powermt if I do a if(-e $ENV{'Powmig Path'}powermt) it doesn't work. I have try to change my path with some substitution \ / I have also try to add more double quote but nothing seems to work :-( Exemple: #!/usr/bin/perl use strict; use warnings; use File::Spec; if($^O =~ m/^MSWin32$/){ my $tmp = File::Spec->catdir($ENV{'Powmig Path'}, "powermt"); if(-e "\"$tmp\""){ print

问题 I have a couple of links that have a margin-left of 3px. These links are underlined and look like that: <a href='#'> test </a> Unfortunately, there are spaces inside the link and I'm not able to remove these space since I don't have access to the HTML code. These spaces are also underlined, which I'm not happy with. Is there any way to remove them without changing the HTML? Here is a fiddle that shows my problem: http://jsfiddle.net/e8quz/ Update: Here is a picture, what I want it to look

问题 I have a sample code: $description = '{"2G Network":"GSM 850 / 900 / 1800 / 1900 ","3G Network":"HSDPA 850 / 900 / 1700 / 1900 / 2100 "}'; $data = json_decode($description); echo $data->2G Network; // OR echo $data['2G Network']; result is error, how to fix it ! 回答1: Try this: echo $data->{'2G Network'}; The problem wasn't with JSON, but that you had a space in the object property you were trying to access. If you use curly braces { } , then you can use strings to name the property you want

问题 So I just stumbled across placement of tabs in a JTabbedPane to the right and left (i.e. setTabPlacement(JTabbedPane.RIGHT) ) which I love the look of. What I need is to utilize the space this leaves beneath the tabs. I currently have a column of JButtons, but they get pushed to the side, leaving a lot of blank space. Any thoughts on how to do this? Some kind of custom overlay or something? Here's a screenshot. In the code I basically have one horizontally aligned Box, with the JTabbedPane

问题 I'm making a game where the player will ( on release of mouseclick ) shoot a "star" in a certain direction at an initial speed determined by how far he dragged the mouse before releasing. I have a "planet" ( stationary circle ) on the canvas that I want to exert a gravitational pull on the moving planet. I believe I'm using the right formulas for gravitational force and such, and I have it partially working - the planet affects the planet's trajectory up until a certain point, when the star

问题 Coming from Visual Studio and starting a project in Java, I realized I couldn't cope with having to press ctrl+space to have the autocomplete panel show up. An easy workaround was to set all keyboard characters to be trigger characters for autocompletion. My only problem is that, when presented with autocomplete suggestions, a single press on the space bar will write the first proposition. In situations where I'm happy with the suggestions, that's just fine. In situations where I actually

问题 I have a column chart where for each X value I have two series. But the graph shows a wide spacing between each X value. Q: How can I do in Highchart to have 1px space between the columns and the y Axis? 回答1: Update pointPadding :0.2 to pointPadding :0 in plotOptions: { column: { pointPadding: 0, borderWidth: 0 } }, 回答2: chart: { marginBottom: 1, marginLeft: 0, marginRight: 0, marginTop: 0, renderTo: container, type: 'column', }, DEMO Also check GroupPadding and PointPadding 来源： https:/

问题 I'm trying to use a webview inside a scrollview on a layout of my Android app. (with a tabhost also, but it's not important) it's something like this: <ScrollView android:layout_height="fill_parent" android:layout_width="fill_parent" > <LinearLayout android:id="@+id/ll1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <WebView android:id="@+id/webview1" android:layout_height="wrap_content" android:layout_width="fill_parent" android

问题 I have a very simple PHP script, something like: while ($condition){ echo "<a href="thanks.php?id=".$id."> THANKS </a>"; } Of course, I have a bit more code but it doesn't matter. Once I had created this piece of code, the script sends an email to the user. THE INBOX The links are okay in every single line, except the LAST ONE shows the link this way: tha nks.php?id..... It adds a space in between the code. This only happens with hotmail. Gmail, yahoo, and everything else work just fine. 回答1:

问题 Environment: Linux/Windows7, Java 1.6.0.03/37 or 1.7 I downloaded jenkins.war and after the initial setup using the following script/command, I downloaded some plugins(10-15) and tried to restart Jenkins, it worked. Then, I got some more plugins (30-40 in total) and either I chose Install or download+then+install, Jenkins didn't come up. i.e. using startJenkins.sh (Linux only). Note: On Windows7 Jenkins started as a Windows service. #!/bin/bash export JAVA_HOME=/production/jenkinsAKS/java