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perl中的范圍聲明our-my-local介紹_perl_腳本之家
our,"把名字限于某個范圍“,其實就是明確聲明一個"全局變量",雖然是在某個模塊或者函數(shù)里面定義的,外面的也可以訪問,如果已經(jīng)聲明過了,再次用"our",表示此處用的是全局的那個,不是同名的私有或者局部變量 復(fù)制代碼代碼如下: our $PROGRAM_NAME = "waiter"; { my $PROGRAM_NAME = "something"; our $PR
www.dbjr.com.cn/article/607...htm 2025-5-25
perl-腳本之家
日期:2015-02-05perl中的范圍聲明our-my-local介紹 日期:2015-02-05perl中的字符串操作函數(shù)chomp與chop介紹 日期:2015-02-05Perl中的10個操作日期和時間的CPAN模塊介紹 日期:2014-12-20Perl實現(xiàn)遍歷目錄例子 日期:2014-12-20Perl實現(xiàn)刪除Windows下的圖片緩存縮略圖Thumbs.db 日期:2014-11-28Perl中的控制結(jié)構(gòu)學(xué)習(xí)...
www.dbjr.com.cn/list/list_125...htm 2025-5-29
perl中my和our的區(qū)別分析_perl_腳本之家
但是 my 聲明的變量又是局部變量,local 又不能創(chuàng)造變量, 所以,我們就沒法使用全局變量了(注1), 因此就又引入了 our,our 的作用就是聲明一個全局變量,但是讓 strict 和 warnings 以為它是詞法變量,因此 our 聲明的變量也是詞法作用域的。但是實際上它是全局變量。 注1: 如果不使用 our,我們有兩種辦法可以創(chuàng)建...
www.dbjr.com.cn/article/355...htm 2025-5-29
第十九章 系統(tǒng)安全
root: me@my.domain 將me@my.domain 改成你的 email,設(shè)定完后,請執(zhí)行 newaliases 來讓設(shè)定生效。如此一來,所有寄給 root 的信件,都會自動轉(zhuǎn)給所設(shè)定的信箱。root 每天會收到 "daily run output" 及 "security check output" 這二封信,這是依照我們在 /etc/defaults/periodic.conf 中所設(shè)定的定時執(zhí)行工作...
www.dbjr.com.cn/shouce/freebsd/ch...htm 2025-5-31
用gomock進(jìn)行mock測試的方法示例_Golang_腳本之家
/usr/local/go/bin/go test -v hellomock -run ^TestCompany_Meeting$ company_test.go:8: Hello 王尼瑪, welcome come to our company, my name is 王尼美 ok hellomock 0.013s 現(xiàn)在我們構(gòu)造一個王尼美還是很簡單的,但是我們現(xiàn)在要用mock對象進(jìn)行模擬,這時mockgen就登場了: ? hellomock> mkdir mock...
www.dbjr.com.cn/article/1513...htm 2025-5-22
URL Rewriting Guide - Advanced topics - Apache 2.2 中文版參考...
Assume there are nice webpages on remote hosts we want to bring into our namespace. For FTP servers we would use the mirror program which actually maintains an explicit up-to-date copy of the remote data on the local machine. For a webserver we could use the program webcopy which acts ...
www.dbjr.com.cn/tools/onlinetools/apach... 2025-5-29
9. 類 Classes
x = MyClass() creates a newinstanceof the class and assigns this object to the local variablex. 以上創(chuàng)建了一個新的類實例并將該對象賦給局部變量x。 The instantiation operation (``calling'' a class object) creates an empty object. Many classes like to create objects in a known initial state...
www.dbjr.com.cn/shouce/python/python_cn... 2025-6-3
MySQL數(shù)據(jù)庫優(yōu)化經(jīng)驗詳談(服務(wù)器普通配置)_Mysql_腳本之家
# mysql-data-dir/my.cnf to set server-specific options (in this # installation this directory is /var/lib/mysql) or # ~/.my.cnf to set user-specific options. # # In this file, you can use all long options that a program supports. ...
www.dbjr.com.cn/article/26486_a...htm 2025-6-4
Apache 1.3 API 備忘錄 - Apache 2.2 中文版參考手冊
If the request is to an imagemap, a type map (i.e., a*.varfile), or a CGI script which returned a local 'Location:', then the resource which the user requested is going to be ultimately located by some URI other than what the client originally supplied. In this case, the server...
www.dbjr.com.cn/tools/onlinetools/apach... 2025-5-27
Accepting Arguments
syntax). The second argument (and all following arguments) are pointers to pointers to pointers tozvals. (Confusing, isn't it?) All these pointers are required because Zend works internally with**zval; to adjust a local**zvalin our function,zend_get_parameters_ex()requires a pointer to it...
www.dbjr.com.cn/shouce/php5/zh/zend.arg... 2025-5-15