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scala小记
方法到函数转换:function= method _ Nothing、Null、Unit、None 、null 、Nil理解:https://www.cnblogs.com/PerkinsZhu/p/7868012.html 打印数组内容:println(arr.toBuffer) ...
分类:其他好文   时间:2018-12-03 00:44:46    阅读次数:227
402. Remove K Digits - Medium
Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. Note: The l ...
分类:其他好文   时间:2018-11-29 15:01:13    阅读次数:143
Linux上运行python出现错误“/usr/bin/env: python3: No such file or directory"
If you see the error “: No such file or directory” (with nothing before the colon), it means that your shebang line has a carriage return at the end, ...
分类:编程语言   时间:2018-11-22 11:48:58    阅读次数:3109
前端界面操作DataTable数据表
一、 知识点描述DataGridView 取得或者修改当前单元格的内容: 当前单元格指的是 DataGridView 焦点所在的单元格,它可以通过 DataGridView 对象的 CurrentCell 属性取得。如果当前单元格不存在的时候,返回Nothing(C#是null) // 取得当前单元... ...
分类:其他好文   时间:2018-11-22 00:21:59    阅读次数:158
MACHINE LEARNING
Evolution of machine learning Because of the newest computing technologies, machine upbringing is now nothing like the mechanical research of the past ...
分类:系统相关   时间:2018-11-21 19:33:38    阅读次数:169
gitHub 常用命令 与 合并冲突问题
git branch 查看所在当前分支(仓库) git pull 刷新当前分支(仓库)文件到本机 git status 查看状态提示On branch master Your branch is up to date with 'origin/master'.nothing to commit, w ...
分类:其他好文   时间:2018-11-18 19:28:33    阅读次数:142
Assembly Experiment3
AIMS & PREPARATIONS of THIS EXPERIMENT: 1st point of this experiment: realize the programme t1.asm in DOSBox (code as follow) STEPS&SCREENSHOTS of THI ...
分类:其他好文   时间:2018-11-18 12:33:42    阅读次数:169
数据库构架设计中的Shared Everthting、Shared Nothing、和Shared Disk
Shared Everthting:一般是针对单个主机,完全透明共享CPU/MEMORY/IO,并行处理能力是最差的,典型的代表SQLServer Shared Disk:各个处理单元使用自己的私有 CPU和Memory,共享磁盘系统。典型的代表Oracle Rac, 它是数据共享,可通过增加节点来 ...
分类:数据库   时间:2018-11-14 20:52:41    阅读次数:223
(转)git遇到的问题之“Please make sure you have the correct access rights and the repository exists.”
对于git的提交一直很小心翼翼,感觉一不小心就会踩到莫名的坑。 这不, 某天commit 就遇到了On branch master nothing to commit (working directory clean) 一查意思。你的分支很干净? 干净?excuse me? 然后git push o ...
分类:数据库   时间:2018-11-13 22:40:36    阅读次数:269
HDU-1325-Is It A Tree?(并查集)
Problem Description A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by dir ...
分类:其他好文   时间:2018-11-13 13:05:44    阅读次数:894
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