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Java数组的使用
一、数组的声明与分配int[] scores = new int[5];二、赋值:int[] scores = {35,58,95,56,12};三、使用循环操作数组:数组名.length用于获取数组的长度四、使用Arrays类操作数组:Arrays类在java.util包中,需要引用Arrays类...
分类:编程语言   时间:2015-07-27 07:00:21    阅读次数:148
leetcode Database3
一、Rank ScoresWrite a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the nex...
分类:数据库   时间:2015-07-17 20:51:36    阅读次数:156
Swift中的字典
学习来自《极客学院:Swift中的字典》工具:Xcode6.4直接上基础的示例代码,多敲多体会就会有收获:百看不如一敲,一敲就会 1 import Foundation 2 3 //字典的声明 4 var dic1: Dictionary 5 var scores: [String:Int] 6.....
分类:编程语言   时间:2015-07-15 12:36:19    阅读次数:144
Just a complaint about the college examinations
Well , you know. As a college student who want to find a good job after graduating like me , scores are not that important. I just want to have some ....
分类:其他好文   时间:2015-06-29 13:07:28    阅读次数:113
欧拉计划(python) problem 22
Names scores Problem 22 Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing over five-thousand first names, begin by sorting it into alphabetical order. ...
分类:编程语言   时间:2015-06-17 21:33:53    阅读次数:223
MySQL 游戏排行榜
今天在坛子上看到了,顺便写下来。有两种方法:1、效率不高,因为有子查询。但是简洁。而且我对SOCRES表做了INDEX。所以性能上也差不了多少。mysql> show create table scores\G*************************** 1. row **********...
分类:数据库   时间:2015-06-16 22:45:18    阅读次数:156
sql example 9 -- 子查询
sql example 9 – 子查询sql example 9 – 子查询数据库准备create table student (id int auto_increment primary key,name varchar(10));create table scores (id int auto_...
分类:数据库   时间:2015-06-14 21:12:27    阅读次数:163
Object-C-NSDictionary
存储对象都必须是id(对象类型)不能使基础类型NSDictionary *scores=[[NSDictionary alloc]initWithObjectsAndKeys:@"89",@"english",@"70",@"computer",nil];*scores=[[NSDictionary...
分类:其他好文   时间:2015-06-08 11:26:05    阅读次数:81
[LeetCode][SQL]Rank Scores
Rank ScoresWrite a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ...
分类:数据库   时间:2015-06-08 00:58:48    阅读次数:219
题目4:MySQL----------Rank Scores
Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. ...
分类:数据库   时间:2015-05-24 08:53:01    阅读次数:186
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