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Thinking in Java,Fourth Edition(Java 编程思想,第四版)学习笔记四)之Operators
At the lowest level, data in Java is manipulated using operatorsUsing Java Operators An operator takes one or more argument and produces a new valu...
分类:编程语言   时间:2015-12-15 00:45:56    阅读次数:316
Python 列表推导、迭代器与生成器
1、列表推导1234567891011numbers = [i for i in range(10) if i % 2 == 0]print(numbers)seq = ["one", "two", "three"]for i, element in enumerate(seq):print(i, ...
分类:编程语言   时间:2015-12-14 23:06:43    阅读次数:241
UVa 572 Oil Deposits(DFS)
Oil DepositsThe GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangula...
分类:其他好文   时间:2015-12-14 21:21:46    阅读次数:279
hdu 1000
杭电第一题InputEach line will contain two integers A and B. Process to end of file.OutputFor each case, output A + B in one line.Sample Input1 1Sample Outp...
分类:其他好文   时间:2015-12-14 18:21:57    阅读次数:123
spring @Scheduled用法
@Scheduled(cron = "0 5 * * * ?")org.springframework.scheduling.annotation.Scheduled/** * Annotation that marks a method to be scheduled. Exactly one o...
分类:编程语言   时间:2015-12-14 14:06:57    阅读次数:300
ecilpse 错误举例
点击运行ecilpse报错如下:1.An internal error occurred during: "Launching New_configuration".Path for project must have only one segment.解决方法:Project—>Propertie...
分类:其他好文   时间:2015-12-14 09:18:58    阅读次数:146
Object-c NSArray
NSarray数组的使用:1、数组简介①oc中的数组和C中的数组有什么区别和联系a、oc中的数组只能是对象b、c中的数组一旦创建,不能修改c、oc中有可变数组NSMutableArray2、数组的创建①、直接赋值NSArray *array = @[@"one",@"two",@"shree"];N...
分类:其他好文   时间:2015-12-13 23:33:00    阅读次数:177
eclipse提示:This tag and its children can be replaced by one <TextView/> and a compound drawable
今天在学习android开发的时候,写了这样的一段代码: 然后eclipse就报出提示:This tag and its children can be replaced by one and a compound drawable最后查了一下资料发现:有时候我们可能会用image+...
分类:系统相关   时间:2015-12-13 21:51:39    阅读次数:296
one-sided limit
Limit[e^(-1/x),x->0,Direction->-1] means $\lim_{x \to 0^{+}}e^{-\frac{1}{x}}$Limit[e^(-1/x),x->0,Direction->-1] means$\lim_{x \to 0^{-}}e^{-\frac{1}{x...
分类:其他好文   时间:2015-12-13 21:50:10    阅读次数:131
Configure One-to-Many(配置一对多关系)【Code-First系列】
现在,我们将学习怎么配置一对多的关系。VisitEntity Relationshipsection to understand how EF manages one-to-one, one-to-many, and many-to-many relationships between the en...
分类:其他好文   时间:2015-12-13 17:09:37    阅读次数:264
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