n********6
发帖数: 1511 | 1 int empty? 是不是null?
oracle default value都是null。
sql server varchar的default value我看到都是null。int的default value可能也是null。
你可能设置了default value为0。（未经过测试） |
|
c***c
发帖数: 6234 | 2 int只有null（你所说的empty）。
create 完 new table后，update 所有 0 to null。 |
|
i****a
发帖数: 36252 | 3 how do I do a select, or create a variable with xxx number of empty spaces. |
|
p******8
发帖数: 551 | 4 Hi All,
It is very unpleasing. When I direct the link to another page in Asp.net web
site, there is an empty /blank/grey screen shows up. I think it happened
because the speed responses from the server or slowness. How to avoid it ?
the user is not happy at it. Thank you!!! |
|
b******y
发帖数: 1684 | 5 for functions like this:
List search(...) {
}
When the search can't get anything, would you return null, or empty list? |
|
|
A**o
发帖数: 1550 | 7 empty list is easier for caller to handle. but it's hard to enforce because
many frameworks don't have such convention, and in the end, you still want
to check for NPE or risk NPE showing up in front of customer.
so, it's a nice to have convention. |
|
w*****d
发帖数: 2415 | 8 An empty list is always better than null, always invoke the method and let
the object handle the behavior is always the correct way to do. You can
create a NullList class implementing List interface and assign several
default behaviors to it. |
|
|
F****n
发帖数: 3271 | 9 Normally I let hibernate automatically create tables for entities. But how
to create empty tables without persist any entities? |
|
s****i
发帖数: 150 | 10 如果是C++的empty structure,应该是default constructor吧 |
|
s*****k
发帖数: 604 | 11 我不是牛人，这个问题不需要牛人来解答
一个empty class 最小占一个byte,否则就没地址了
另外class里面的non-virtual member function 不会增加
class的size
vitual function的话会多一个 vtable |
|
H***a
发帖数: 735 | 12 Np. My understanding is that (for your original code):
eof() or good() checks internal state flags "eofbit", which is modified when
getline() is encountered problem in reading from infile.
When getline() reads the last line, it stops by seeing the EOF, however it
consider this read is successful so won't flip eofbit to TRUE. The file
pointer moves to position of EOF (remember getline() returns istream&)
Since eofbit is still FALSE now, eof() or good() lets it loop over, getline(
) sees the EOF a... 阅读全帖 |
|
g*****1
发帖数: 998 | 13 很多面试题关于empty class要占1 byte，以示存在
想问问那default的比如constructor,copy constructor什么的在哪里，通过什么办法
提供给这个class？ |
|
f**********r
发帖数: 120 | 14 the literal stack isn't empty for entry XXX, how to solve the error in
bibtex. thanks. |
|
s*****r
发帖数: 59 | 15 read a .csv file line by line and assign value to an array, some line is
empty, so the array won't have any value.
HOw to detect it? suppose array is a, then IsEmpty(a) won't work, if check
value of a[0] , report run time error.
//thanks. |
|
|
o******6
发帖数: 538 | 17 ☆─────────────────────────────────────☆
watersun (哗啦啦) 于 (Tue Feb 17 14:26:16 2009) 提到:
我要读1000个FILE,有些FILE是EMPTY，但是我不知道是哪些，所以我写了个LOOP来读这
些FILE，如果这些FILE 是空的，循环就停止了
Error in read.table(filename, blank.lines.skip = T) :
no lines available in input
应该如何做呢？
☆─────────────────────────────────────☆
papertigra (长工胖头猪) 于 (Tue Feb 17 14:51:38 2009) 提到:
for SAS data, use Exist function
For non-SAS data, use fileexist function
☆─────────────────────────────────────☆
songkun (告别棒球场) 于 (Tue F |
|
d*****r
发帖数: 39446 | 18 【此篇文章是由自动发信系统所张贴】
empti 已经成为本俱乐部的正式成员, 特此通知. |
|
i*e
发帖数: 859 | 19 看了一百多水。一句话冒上心头。
微风起来，四面都是灰土。另外有几个人各自走路。
i see none but emptiness beneath。 |
|
c*********s
发帖数: 63 | 20 终于弄好了。把下面的存成.bst文件，和Tex文件放在同一个文件夹就可以了。
%%
%% This is file `cellnew.bst',
%% generated with the docstrip utility, by HJ, 03/03/2013.
%%
%% The original source files were:
%%
%% merlin.mbs (with options: `ay,nat,nm-rvvc,nmlm,x10,x0,m10,m0,mcite,mct-1
,mct-x2,keyxyr,blkyear,dt-beg,yr-par,note-yr,atit-u,jttl-rm,thtit-a,vol-it,
vnum-x,volp-com,pp-last,num-xser,jnm-x,btit-rm,bt-rm,add-pub,pub-par,pre-pub
,edby,edbyy,blk-tit,ppx,ed,abr,ednx,xedn,jabr,url,url-blk,em-it,nfss,')
%% ----------------------... 阅读全帖 |
|
c*********s
发帖数: 63 | 21 终于弄好了。把下面的存成.bst文件，和Tex文件放在同一个文件夹就可以了。
%%
%% This is file `cellnew.bst',
%% generated with the docstrip utility, by HJ, 03/03/2013.
%%
%% The original source files were:
%%
%% merlin.mbs (with options: `ay,nat,nm-rvvc,nmlm,x10,x0,m10,m0,mcite,mct-1
,mct-x2,keyxyr,blkyear,dt-beg,yr-par,note-yr,atit-u,jttl-rm,thtit-a,vol-it,
vnum-x,volp-com,pp-last,num-xser,jnm-x,btit-rm,bt-rm,add-pub,pub-par,pre-pub
,edby,edbyy,blk-tit,ppx,ed,abr,ednx,xedn,jabr,url,url-blk,em-it,nfss,')
%% ----------------------... 阅读全帖 |
|
a*****1
发帖数: 3817 | 22 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 23 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 24 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 25 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 26 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 27 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a********9
发帖数: 3813 | 28 瞎说
THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién an... 阅读全帖 |
|
a********9
发帖数: 3813 | 29 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them.
Perhaps the saying is true: dime con quién andas... 阅读全帖 |
|
a*****1
发帖数: 3817 | 30 THE BLOG
Why I Can No Longer Support Hillary Clinton
4 days ago
César Vargas Writer, director, advocate, strategist, cultural critic.
Founder of upliftt.com.
It took me a long time to write this. I had to dig deep into my being to
come up with these words. I’m recanting my endorsement of Hillary Clinton
for the presidency.
I’m aware of how vindictive Clintonians can be. I’m not speaking about the
Clintons themselves, but of those surrounding them. Perhaps the saying is
true: dime con quién andas... 阅读全帖 |
|
r******r
发帖数: 700 | 31 我当年的 homework,翻出来了。另一个 homework project, 帮我找到了第一个工作。
#ifndef LIST_H
#define LIST_H
#include
#include
#include
#include "node.h"
using namespace std;
/*=========================================================================*/
/**
* Implementation of a List ADT using a doubly-linked list.
*
* @version 1.0 2/25/05
*/
/*.........................................................................*/
/**
* Definition of exception handling class
*/
class ListEmpty : public ... 阅读全帖 |
|
g********d
发帖数: 19244 | 32 ☆─────────────────────────────────────☆
theislander3 (Peace de Wars) 于 (Wed Jul 24 18:32:46 2013, 美东) 提到:
比如把宝马5系奔驰E和奥迪A6做为假想敌号称走性能和操控路线的Lexus GS开起来也是
松松垮垮的感觉
就算更加以性能和运动性著称的日本车也好不了多少，开过保时捷的人都知道那种
solid的感觉，为什么日本车造不出来？车身刚性差别的确很大，但是日本人的钢也不
错，那就是engineering的水平吗？
☆─────────────────────────────────────☆
glowinglake (湖清霞远) 于 (Wed Jul 24 18:35:33 2013, 美东) 提到:
taste不同
☆─────────────────────────────────────☆
penghui (每天多爱一些) 于 (Wed Jul 24 18:36:59 2013, 美东) 提到:
为啥江浙一带做不出东北那种傻大黑粗的菜？
☆─────... 阅读全帖 |
|
z**********e
发帖数: 22064 | 33 二战中美国兵因为这个被打死的很多，美国兵对这个怨声载道。
还有，这个跟人多人少有关系吗？
其实，就是拉枪栓的声音，都不这么危险：至少它不告诉对方，我没子弹了。
查到了这个，在韩战中，美军采用“双枪制”：两人配合，一个打，一个压满子弹等着
；等到“砰”一声弹夹弹出，对方露头时，压满子弹的那个就正好开火。
http://thefiringline.com/forums/archive/index.php?t-106892.html
PDAView Full Version : Did the Garand`s "ping" get GIs killed?
----------------------------------------------------------------------------
----
FatelvisMarch 28, 2002, 07:51 PM
I once heard, that in close-up fighting, (I believe in the South Pacific),
that in a stalemate cover situa... 阅读全帖 |
|
J******s
发帖数: 7538 | 34 I was busy at work this morning and did not have time to type an example.
Now I have a little bit of time and I will try to explain to you with an
example. Suppose you are in a room. When you do not see anybody else in the
room, you know you are the only one in the room. This same situation can be
applied to awareness. Suppose this room has light - awareness is like the
light. Let's say there is nothing in the room except light. The room is
totally empty. Remember the awareness has the ability t... 阅读全帖 |
|
g********d
发帖数: 19244 | 35 ☆─────────────────────────────────────☆
sinjay (Jay) 于 (Fri Apr 26 09:57:24 2013, 美东) 提到:
Would like to try a manual compact car. Unfortunately, no extra money for
big modification.
Which one will be better choice in term of driving fan, reliability, maybe
resale value :)
It will be my major daily commuter.
Appreciate any comments.
Thanks.
update:
感谢各位的建议。
周六去试驾了GTI和MS3.
起步加速MS3似乎更有背推感，弯道感觉差不多，可能是速度还不够快。换档感觉GTI要
顺一些，离合感觉也好一点。
更喜欢MS3的外形，特别的黑色的轮毂，太帅。但内饰GTI是完胜，各项功能操作也是相
对简洁明了。MS3操控台感觉有点乱，座椅看... 阅读全帖 |
|
g********d
发帖数: 19244 | 36 ☆─────────────────────────────────────☆
nhe261 (MIT第二才子) 于 (Mon Dec 9 23:05:36 2013, 美东) 提到:
其实二手宝马也没有那么恐怖，只要普通维护跟上，出大问题几率很小。
不过任何二手车都有可能出问题，这就是省钱的代价，算赌博也好，因为毕竟出大问题
的只是几率比新车高，但也不是绝对的。宝马的小问题很多,一是因为车子设计地紧凑,
零件多,SENSOR 多,导致报警也多.二是很多塑料跟橡胶件不过关,时间长了就老化漏油.
不过很多小问题不修也无所谓,可以照样开,甚至于不会影响安全或性能.只要你能忍受.
俺自己忍受不了,又爱折腾所以就都换了.希望不要吓着各位宝马车主或准车主.
俺在买车一年内把几乎所有容易出问题的地方都换过了,所以车况应该跟新车没啥区别,
甚至更可靠.这就是PM的作用.不过你要是不管他等问题出现再修也没问题,只不过可能
会花更多钱,因为可能造成更大的DAMAGE.不过也可能省钱,因为可能根本就不会坏.
宝马的设计比美车日车都更solid，装配比美车好，不如日车。开起来的体验跟日车美
车都... 阅读全帖 |
|
c********s
发帖数: 817 | 37 This is my implementation for these two functions, and a driver to run them.
cat string_reverse.c
#include
#include
#include
void swap(char* c1, char* c2);
// -----------------
void string_reverse1(char* string) {
if (string == NULL)
return;
char* head = string;
char* tail = head;
// find the tail
while (*tail) ++tail;
--tail;
// while loop to do the swap
while (head < tail)
swap(head++, tail--);
}
// -----------------
// the caller of this function is res... 阅读全帖 |
|
d**********o
发帖数: 1321 | 38 最终版本的compiler测试结果
=================================================
Output of Building User Code
Explode the tar
c-.l
c-.y
scanType.h
makefile
symtab.h
symtab.cpp
emitCode.h
emitCode.cpp
20131214164956-huang-CS445-F13-A5.tar: POSIX tar archive (GNU)
Tests: directory
c-.l: lex description text
c-.y: lex description text
emitCode.cpp: ASCII C++ program text
emitCode.h: ... 阅读全帖 |
|
d**********o
发帖数: 1321 | 39 最终版本的compiler测试结果
=================================================
Output of Building User Code
Explode the tar
c-.l
c-.y
scanType.h
makefile
symtab.h
symtab.cpp
emitCode.h
emitCode.cpp
20131214164956-huang-CS445-F13-A5.tar: POSIX tar archive (GNU)
Tests: directory
c-.l: lex description text
c-.y: lex description text
emitCode.cpp: ASCII C++ program text
emitCode.h: ... 阅读全帖 |
|
y*********u
发帖数: 14561 | 40 ☆─────────────────────────────────────☆
lambskewer (yangrouchuanr) 于 (Tue Feb 1 23:13:11 2011, 美东) 提到:
2007年
☆─────────────────────────────────────☆
lambskewer (yangrouchuanr) 于 (Tue Feb 1 23:16:54 2011, 美东) 提到:
2011年的snow day
☆─────────────────────────────────────☆
nemat (宝嘿嘿) 于 (Tue Feb 1 23:22:44 2011, 美东) 提到:
哇～！！！
太帅啦！！！
什么品种的狗啊？
☆─────────────────────────────────────☆
friediceman (Bing) 于 (Tue Feb 1 23:31:19 2011, 美东) 提到:
名副其实的雪橇犬啊
☆─────────────────────────────────... 阅读全帖 |
|
c*******9
发帖数: 9032 | 41 http://homepages.cwi.nl/~tromp/go/Go.hs
{-# LANGUAGE ScopedTypeVariables #-}
module Go where
import Data.Ix
import Data.List
import Data.Array
import Control.Monad
import Control.Monad.State
data Player = Black | White deriving (Eq, Enum, Show)
data Color = Empty | Stone Player deriving (Eq, Show)
newtype Position p = Position (Array p Color) deriving (Eq)
color :: (Point p) => Position p -> p -> Color
color (Position pos) p = pos!p
class (Show p, Ix p) => Point p where
pointBounds :: (p,p)
... 阅读全帖 |
|
a*****g
发帖数: 19398 | 42 #!/usr/bin/env pike
// legal.pike - Count the number of legal go boards.
// Copyright 2005 by Gunnar Farneb?ck
// [email protected]
/* */
//
// You are free to do whatever you want with this code.
//
//
// This program computes the number of legal go board configurations
// for a rectangular board of a given size. It is efficient enough to
// handle boards up to 8x8 within minutes and up to 11x11 in less than
// 24 hours (on a fast computer). For rectangular boa... 阅读全帖 |
|
a*****g
发帖数: 19398 | 43 【 以下文字转载自 Programming 讨论区 】
发信人: ananpig (●○ 围棋数学一把抓的安安猪), 信区: Programming
标 题: 计算围棋棋盘合法图案的源代码
发信站: BBS 未名空间站 (Fri Jan 22 10:39:02 2016, 美东)
#!/usr/bin/env pike
// legal.pike - Count the number of legal go boards.
// Copyright 2005 by Gunnar Farneb?ck
// [email protected]
/* */
//
// You are free to do whatever you want with this code.
//
//
// This program computes the number of legal go board configurations
// for a rectangular board of a given size. It is ef... 阅读全帖 |
|
wh
发帖数: 141625 | 44 贴个empty sky的歌词。他的歌好沉重啊。这也是怀念亡者的歌吧？既有爱人（kiss
from your lips），又有敌人(an eye for an eye）？杀人的弓箭既来自tree of good
又来自tree of evil。plains of jordan不知道是圣经的什么故事。这歌很让我想起新
疆的维汉冲突。
I woke up this morning
I could barely breathe
Just an empty impression
In the bed where you used to be
I want a kiss from your lips
I want an eye for an eye
I woke up this morning to the empty sky
Empty sky, empty sky
I woke up this morning to an empty sky
Empty sky, empty sky
I woke up this morning to an empty sky
Blood on the stre |
|
i*****y
发帖数: 3449 | 45 说实话看过古文版的心经，一直不太懂，英文版的才看懂说的是什么。
玄藏法师译本
观自在菩萨．行深般若波罗蜜多时．照见五蕴皆空．度一切苦厄．舍利子．色不异 空
．空不异色．色即是空．空即是色．受想行识．亦复如是．舍利子．是诸法空相．不生
不灭．不垢不净．不增不减．是故空中无色．无受想行识．无眼耳鼻舌身意．无色声香
味触法．无眼界．乃至无意识界．无无明．亦无无明尽．乃至无老死．亦无老死尽．无
苦集灭道．无智亦无得．以无所得故．菩提萨埵．依般若波罗蜜多故．心无挂碍．无挂
碍故．无有恐怖．远离颠倒梦想．究竟涅槃．三世诸佛．依般若波罗蜜多故．得阿耨多
罗三藐三菩提. 故知般若波罗蜜多．是大神咒．是大明咒．是无上咒．是无等等咒．能
除一切苦．真实不虚．故说般若波罗蜜多咒．即说咒曰．揭谛揭谛．波罗揭谛．波罗僧
揭谛．菩提萨婆诃
The Heart Sutra
Avalokiteshvara, the Bodhisattva of Compassion, meditating deeply on
Perfection of Wisdom, saw clearly that the five aspe... 阅读全帖 |
|
e****i
发帖数: 2152 | 46 【 以下文字转载自 Military 讨论区 】
发信人: erkuai (三天不上bbs,赶得上刘少奇), 信区: Military
标 题: On the Jews and Their Lies, 1543
发信站: BBS 未名空间站 (Wed Jan 12 23:21:23 2011, 美东)
by Martin Luther (1483-1546)
Translated by Martin H. Bertram
copyright © 1971 Fortress Press & Augsburg Fortress - On the Jews and
Their Lies is from Luther’s Works Volume 47. Augsburg Fortress is the
publishing ministry of the Evangelical Lutheran Church in America.
Funded through sales revenue, Augsburg Fortress is called to provide
produ... 阅读全帖 |
|
e****i
发帖数: 2152 | 47 by Martin Luther (1483-1546)
Translated by Martin H. Bertram
copyright © 1971 Fortress Press & Augsburg Fortress - On the Jews and
Their Lies is from Luther’s Works Volume 47. Augsburg Fortress is the
publishing ministry of the Evangelical Lutheran Church in America.
Funded through sales revenue, Augsburg Fortress is called to provide
products and services that communicate the Gospel, enhance faith, and
enrich the life of the Christian community from a Lutheran perspective.
Part I
I had mad... 阅读全帖 |
|
g********d
发帖数: 19244 | 48 ☆─────────────────────────────────────☆
fredccr (fred) 于 (Thu Jan 3 14:53:33 2013, 美东) 提到:
看到版上一直讨论这两个，我的理解是车漂不漂基本由车的重量决定，方向盘轻不轻只
是设计上的问题，方向盘助力泵的参数设计罢了。两者对于车的质量没有直接影响，是
设计风格不同罢了。我没有开过很多的车，但是从我开过的车里面看，同类型的sedan
因为重量差不多，高速上车飘的程度相差不多，但是方向盘的灵活度相差不少。
☆─────────────────────────────────────☆
yoh (海豚) 于 (Thu Jan 3 15:01:05 2013, 美东) 提到:
嗯，主要是重量的问题。还没听说过抱怨坦克飘的。。。
☆─────────────────────────────────────☆
bbsfan (Fan) 于 (Thu Jan 3 15:04:02 2013, 美东) 提到:
车漂不漂由车的重量决定之外，和轮胎，避震也有相当关系吧。
但不少人因向盘... 阅读全帖 |
|
