2020-02-16 标签:初步,了解,ruby,关键字,def,undef,方法,定义,module,模块,class,defined,检查,类型,条件,语句,else,elsif,case

关键字 def undef 方法定义 module 模块定义 class 类定义 defined? 检查类型 条件语句 if,then,else,elsif,case,when,unless 循环语句　for ,in,while,until,next,break,do,redo,retry,yiel

2020-02-16 标签:dba,indexes,视图,性能,分析,select,case,when,status,unusable,alter,index,owner,n,ame,rebuild,online,compute,statistics,umber

select case when status='UNUSABLE' then'alter index '||owner||'.'||index_name||' rebuild online compute statistics;'when to_number(degree)>1 then'a

2020-02-16 标签:php,区别,performed,实现,代码,如下,ampersand,becomes,double,quote,when,ent,noquotes,n,ot,set,single

The translations performed are: 实现代码如下： ' echo htmlentities($str); // $str='测试页面'; echo htmlspecialchars($str); // 测试页面结论是，有中文的时候，最好用 htmlspecialchar

2020-02-16 标签:ruby,流程,控制,方法,讨论,更多,case,语句,测试,次序,条件,正如,所见,c,java,switch,相当,接近,更强

这章我们将讨论更多的Ruby流程控制. case 我们用case语句测试有次序的条件.正如我们所见的,这和C,Java的switch相当接近,但更强大. ruby> i=8 ruby> case i| when 1, 2..5|print "1..5\n"| when 6..10|pri

2020-02-16 标签:比较,经典,10,汉译,语句,i,love,n,ot,am,when,我爱你,你是,怎样,的人,而是,喜欢,与你

(1)I love you not because of who you are,but because of who i am when i am with you 我爱你，不是因为你是一个怎样的人，而是因为我喜欢与你在一起的感觉 (2)No manor woman is woath your t

2020-02-16 标签:windows,xp,网络,故障,修复,步骤,actions,occur,when,i,click,repair,a,n,etwork,connection,later,right,select,status

What actions occur when I click Repair on a network connection in Windows XP and later? A.If you right-click a network connection and select Status, W

2020-02-16 标签:expandable,quot,detail,table,rows,a,common,ui,data,when,clicked,expand,show,detailed,breakdown,child,below,parent,row

A common UI is to have a table of data rows, which when clicked on expand to show a detailed breakdown of "child" rows below the "parent" row. The onl