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huohuo — Tue, 31 Dec 2019 13:11:00 GMT

class Square{

public:
Square(int x ) :value(x*x){
}

Square(const Square& other) = delete;//rule 1

const Square & operator = (const Square& other) == delete;//rule 2

const Square & operator = (Square&& other) = delete;//rule3

..
}

Square s = 9; //因�ؓs没有初始�?会先�? 调用构造函�?span style='display: inline !important; float: none; background-color: #ffffff; color: #000000; font-family: verdana,"courier new"; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;'> Square(int x ) , 然后调用Square(const Square& other),和rule1 �q�背

Square s2(8);

s= s2;//对应rule 2
s= Square(9);//对应 rule3

huohuo 2019-12-31 21:11 发表评论

huohuo — Mon, 07 Jul 2014 14:20:00 GMT

其实一直想学ruby�Q��L��拖拖拉拉推了几年�? 很多ruby的教材要么老厚一�? 要么是东一榔头西一斧头�Q�逻辑性不清楚 ruby语法�q�没说清楚就上rails�? �q�个教材挺好�? 今天才发现argument 是实参，parameter是�Ş�?

huohuo 2014-07-07 22:20 发表评论

��新的百宝箱

huohuo — Mon, 20 Jan 2014 13:49:00 GMT

��新看到妈妈用订书机订了一个盒子，他就从打印机上面拿了几张a4�U�，钉了一个像盒子的东西，当作他的癑֮��，把他的一些零零碎��的东西攑ֈ�他的癑֮��׃��?有一天他看到了妈妈的首饰盒，他觉得很漂亮�Q�就和妈妈说�Q�妈妈，我把你这个盒子里面的东西攑ֈ�我的那个癑֮��里面，你这个盒子给我当癑֮��吧�?妈妈当然不同意。小新很希望要个癑֮��，爸爸��问他：“你需要一个多大的癑֮��？” ��新比划了一个大��，他希望大一点，能装很多东西。爸爔R��他是不是希望��子能有很多分隔�Q?��新说不要分隔，但是癑֮��p��有锁�?爸爸明白�?--你就是要个能锁住的箱子嘛�Q�我�l�你找个皮箱�Q�带密码锁的�? �W�二天，爸爸上班回来�Q�发��C��q�x��用的�W�记本电脑被��新锁在他的"新百宝箱"----密码锁皮��里面了�Q�密码是��新讄��?爸爸不知道密码，打不开皮箱�Q�爸爸就和小新说�Q?帮爸爸把电脑拿出来，爸爸要给你查一个睡觉前讲的故事�Q�不然今天就没故事听�?�?��新��_��“你用手机也可以查的嘛�Q�别以�ؓ我不知道”

huohuo 2014-01-20 21:49 发表评论

huohuo — Sun, 18 Aug 2013 14:37:00 GMT

1 解析utf-8的中文字�W�问�?我修改了 ReportTask�c�里面的一个方�?增加了一个getJava().setVmArgs("-Dfile.encoding=utf-8")
2.覆盖率出不了数据一斚w��注意制定datafile,把cubertura-instrument和cobertura-report的datafile讄��Z��?另外junit里面也要讄��一个系�l�属�?制定cubertura的datafile属�? 不制定datafile�?可能生成文�g在当前运行ant的目�?但是我们ant��d��中的junit��试��d��,可能会��用不同的目录来作工作路径.�q�样会导致datafile不一�?

另外一个是要记得将javac ��d��的debug="yes" ,因�ؓ只有debug =yes�?�~�译的代码才带有行信�?能显�C��? 当然常见的问题是junit的classpath中的instrument class目录攑ֈ�原来被测class之前.

huohuo 2013-08-18 22:37 发表评论

windows �q�程ssh 调用linux�Q�实现自动安装的�Ҏ��

huohuo — Sat, 03 Mar 2012 22:31:00 GMT

下蝲putty的安装版本，安装之后有一个plink pscp�E�序�?br />plink�E�序负责调用ssh命��o
pscp负责上传文�g�?br />
plink -l user -pw pass hostname

但是因�ؓplink会提�C�是否要保存密码�Q�不能保证自动批处理�q�行�Q�此时利用管道的能力来输入提�C�的�l�果

echo Y >yes.txt
plink -l user -pw pass hostname

huohuo 2012-03-04 06:31 发表评论

twiter storm

huohuo — Tue, 20 Dec 2011 17:27:00 GMT

/Files/lijinglin/storm.pdf

huohuo 2011-12-21 01:27 发表评论

zookeeper应用

huohuo — Tue, 20 Dec 2011 16:33:00 GMT

/Files/lijinglin/zookeeper.ppt

huohuo 2011-12-21 00:33 发表评论

kafka

huohuo — Tue, 20 Dec 2011 14:53:00 GMT

kafka pdf

/Files/lijinglin/F_1330_Narkhede_Kafka.pptx

huohuo 2011-12-20 22:53 发表评论

STORM SRC

huohuo — Sun, 18 Dec 2011 18:15:00 GMT

/Files/lijinglin/stormsrc.rar

huohuo 2011-12-19 02:15 发表评论

huohuo — Thu, 15 Dec 2011 19:48:00 GMT

zookeeper集群安装

博客分类�Q?/strong>
cloud

zookeeper

��试环境redhat5.5�Q?
vmware��Z��台虚拟机�Q�btw�Q�似乎双核系�l�只能徏俩，3个就��L��了）
192.168.229.129
192.168.229.130

下蝲2011�q?2�?5日的最新zookeeper
加压�?
/opt/zookeeper-3.4.0/
配置/opt/zookeeper-3.4.0/conf/zoo.cfg
可以把那个例子考过�?

Java代码

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/zookeeper-3.4.0/data/zookeeper
dataLogDir=/opt/zookeeper-3.4.0/data/log
# the port at which the clients will connect
clientPort=2181
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=192.168.229.129:2888:3888
server.2=192.168.229.130:2888:3888
# The number of milliseconds of each tick tickTime=2000 # The number of ticks that the initial # synchronization phase can take initLimit=10 # The number of ticks that can pass between # sending a request and getting an acknowledgement syncLimit=5 # the directory where the snapshot is stored. # do not use /tmp for storage, /tmp here is just # example sakes. dataDir=/opt/zookeeper-3.4.0/data/zookeeper dataLogDir=/opt/zookeeper-3.4.0/data/log # the port at which the clients will connect clientPort=2181 # # Be sure to read the maintenance section of the # administrator guide before turning on autopurge. # # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance # # The number of snapshots to retain in dataDir #autopurge.snapRetainCount=3 # Purge task interval in hours # Set to "0" to disable auto purge feature #autopurge.purgeInterval=1 server.1=192.168.229.129:2888:3888 server.2=192.168.229.130:2888:3888

修改/opt/zookeeper-3.4.0/bin/zkServer.sh

Java代码

status)
    # -q is necessary on some versions of linux where nc returns too quickly, and no stat result is output
    #STAT=`echo stat | nc -q 1 localhost $(grep "^[[:space:]]*clientPort" "$ZOOCFG" | sed -e 's/.*=//') 2> /dev/null| grep Mode`
    STAT=`echo stat | nc localhost $(grep "^[[:space:]]*clientPort" "$ZOOCFG" | sed -e 's/.*=//') 2> /dev/null| grep Mode`
status) # -q is necessary on some versions of linux where nc returns too quickly, and no stat result is output #STAT=`echo stat | nc -q 1 localhost $(grep "^[[:space:]]*clientPort" "$ZOOCFG" | sed -e 's/.*=//') 2> /dev/null| grep Mode` STAT=`echo stat | nc localhost $(grep "^[[:space:]]*clientPort" "$ZOOCFG" | sed -e 's/.*=//') 2> /dev/null| grep Mode`

以上�q�些多台机器一�?

log和data都在dataDir下面
如果找不到log了用大招:
ps -ef|grep zookeeper
ls -l /proc/123123/fd
其中有一个是log
然后dataDir建立一个文件myid
�?92.168.229.129�?
echo 1 >/opt/zookeeper-3.4.0/data/zookeeper/myid
�?92.168.229.130�?
echo 2 >/opt/zookeeper-3.4.0/data/zookeeper/myid
对应zoo.cfg里面�?
注意一定是数字

然后zkServer.sh start
启动
zkServer.sh status
看状�?
echo ruok|nc localhost 2181
//are you ok?
echo dump|nc localhost 2181
echo stat|nc localhost 2181
echo srst|nc localhost 2181
zkServer.sh stop

huohuo 2011-12-16 03:48 发表评论