我在linux机箱上安装了mysql服务器IP = 192.168.1.100但是当我尝试连接到这个IP时它总是错误(111).但是使用localhost和127.0.0.1就可以了.
beer@beer-laptop# ifconfig | grep "inet addr"
inet addr:127.0.0.1 Mask:255.0.0.0
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
beer@beer-laptop# mysql -ubeer -pbeer -h192.168.1.100
ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.1.100' (111)
beer@beer-laptop# mysql -ubeer -pbeer -hlocalhost
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 160
Server version: 5.1.31-1ubuntu2 (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>
beer@beer-laptop# mysql -ubeer -pbeer -h127.0.0.1
Welcome to the MySQL … 我想从执行Test_Pipe.py输出,我尝试在Linux上使用代码,但它没有用.
Test_Pipe.py
import time
while True :
print "Someting ..."
time.sleep(.1)
Caller.py
import subprocess as subp
import time
proc = subp.Popen(["python", "Test_Pipe.py"], stdout=subp.PIPE, stdin=subp.PIPE)
while True :
data = proc.stdout.readline() #block / wait
print data
time.sleep(.1)
该行proc.stdout.readline()被阻止,因此没有数据打印出来.
我的代码有什么问题？
#!/bin/sh
LOOK_FOR="$1"
for i in `find $2 -name "*jar"`; do
echo "Looking in $i ..."
#jar tvf $i | grep $LOOK_FOR > /dev/null
jar tvf "$i" | grep "$LOOK_FOR"
if [ $? == 0 ] ; then
echo "==> Found \"$LOOK_FOR\" in $i"
fi
done #line 13
产量
wk@wk-laptop:$ sh lookjar.sh org/apache/axis/message/addressing/EndpointReference /media/0C06E20B06E1F61C/uengine/uengine
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/build/uengine_settings.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/WebContent/uengine-web/lib/FCKeditor/WEB-INF/lib/commons-fileupload.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/WebContent/uengine-web/lib/FCKeditor/WEB-INF/lib/FCKeditor-2.3.jar ...
[: 13: 1: unexpected …我需要编写python应用程序连接到作为SIP服务器运行的trixbox.但我没有找到任何在python中实现的库.我在http://www.vaxvoip.com/找到了SIP SKD,但它不支持python.任何人都可以建议我替代VaxVoip吗？谢谢.
我试图编写代码来打印Z字符.
zzzzzzz
z
z
z
z
z
zzzzzzz
但是当我编译这段代码时,它会抛出
D:\erlang\graphics>erlc zeez2.erl
d:/erlang/graphics/zeez2.erl:19: head mismatch
d:/erlang/graphics/zeez2.erl:6: function zeez/3 undefined
我无法修复此错误.我没有发现我的错误.
有人请建议我.
谢谢.
-module(zeez2).
-export([main/0]).
main() ->
L = 8,
zeez( false ,1, L). % line 6
zeez(true, M,M) ->
init:stop();
zeez(false, M, N) ->
io:format("~p~n", [zeez(z, N-M)] ),
zeez(M rem N =:= 0, M + 1, N );
zeez(true, M, N) ->
io:format("~p~n", [zeez(space, N-M)] ), % line 16
zeez(M rem N =:= 0, M + 1 , N );
zeez(space, …假设我有使用Python实现的简单XML-RPC服务:
from SimpleXMLRPCServer import SimpleXMLRPCServer
def getTest():
return 'test message'
if __name__ == '__main__' :
server = SimpleThreadedXMLRPCServer(('localhost', 8888))
server.register_fuction(getText)
server.serve_forever()
谁能告诉我如何从C#调用getTest()函数？
我想模拟许多重要的新闻事件.我通过使用找到了一个解决方案XTestFakeKeyEvent,但是当我模拟超过210次时,我的程序引发了"达到最大客户端数"的分段错误.我不知道如何解决这个问题.
我的代码在这里:
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/extensions/XTest.h>
#include <stdio.h>
#define PRESS_UP 0
#define PRESS_DOWN 1
#define PRESS_LEFT 2
#define PRESS_RIGHT 3
#define PRESS_ENTER 4
#define PRESS_ESC 5
#define PRESS_HOME 6
Display *display;
unsigned int keycode;
int press(int key){
display = XOpenDisplay(NULL);
if(key == PRESS_UP)
keycode = XKeysymToKeycode(display, XK_Up);
else if(key == PRESS_DOWN)
keycode = XKeysymToKeycode(display, XK_Down);
else if(key == PRESS_LEFT)
keycode = XKeysymToKeycode(display, XK_Left);
else if(key == PRESS_RIGHT)
keycode = XKeysymToKeycode(display, XK_Right);
else if(key == PRESS_ENTER)
keycode …如果我有"img"元素id ="myimg".
可以添加链接到"img"而无需使用jQuery编辑html页面
<img id="myimg" src="image.png">
我喜欢让"myimg"有这样的链接.
<a href="test.html"><img id="myimg" src="image.png"></a>
我喜欢从wmctrl获取window pid(只有firefox),我试过wmctrl -lp | grep Firefox | awk -F"""{print $ 1}"但输出与我的预期不符.请帮忙.
beer@beer-laptop# wmctrl -lp
0x0160001b -1 6504 beer-laptop x-nautilus-desktop
0x016000bd 0 6504 beer-laptop conference - File Browser
0x03e00003 0 0 N/A XBMC Media Center
0x03800081 0 7282 beer-laptop Xbmc_ConferenceWindow.py (~/.qlive/xbmc-conference) - gedit
0x0352f117 0 6963 beer-laptop Ask a Question - Stack Overflow - Chromium
0x01400040 -1 6503 beer-laptop Top Expanded Edge Panel
0x01400003 -1 6503 beer-laptop Bottom Expanded Edge Panel
0x03202deb 0 6866 beer-laptop beer@beer-laptop: ~/.qlive/conference
0x012000c4 0 …如果我有从数据库获取的valvo,如何使用JQuery将volvo选项状态设置为活动(已检查)？
<select name="car">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
我不知道如何管理具有相同身份的控件.
??? $('input[name="car"]').attr('checked', true);