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SQL语句的增删查改
一、增:有2种方法1.使用insert插入单行数据: 语法:insert [into] [列名] values 例:insert into Strdents (姓名,性别,出生日期) values ('王伟华','男','1983/6/15') 注意:如果省略表名,将依次插入所有列2.使用...
分类:数据库   时间:2014-10-27 10:46:56    阅读次数:256
A Tour of Go Slices
A slice points to an array of values and also includes a length.[]Tis a slice with elements of typeT.package main import "fmt"func main() { p := []...
分类:其他好文   时间:2014-10-27 01:45:20    阅读次数:222
A Tour of Go Struct Literals
A struct literal denotes a newly allocated struct value by listing the values of its fields.You can list just a subset of fields by using theName:synt...
分类:其他好文   时间:2014-10-27 01:43:25    阅读次数:206
(三)underscore.js框架Objects类API学习
keys_.keys(object)  Retrieve all the names of the object's properties. _.keys({one: 1, two: 2, three: 3}); => ["one", "two", "three"] values_.values(object)  Return all of the values of the obje...
分类:Windows程序   时间:2014-10-26 17:00:33    阅读次数:333
[leetcode] Path Sum
问题描述: Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example: Given the below binary tree...
分类:其他好文   时间:2014-10-26 13:11:29    阅读次数:177
Binary Tree Level Order Traversal 二叉树层序遍历
Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, level by level).For example:Given binary tree{3,9,2...
分类:其他好文   时间:2014-10-26 06:48:34    阅读次数:188
Binary Tree Level Order Traversal II 二叉树层序遍历之二
Given a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For exa...
分类:其他好文   时间:2014-10-26 06:47:17    阅读次数:187
uva1152 - 4 Values whose Sum is 0(枚举,中途相遇法)
用中途相遇法的思想来解题。分别枚举两边,和直接暴力枚举四个数组比可以降低时间复杂度。可是我不会写。。。看了紫书作者刘汝佳老师的代码,真是太美了!简单明了,就像看吕钦下的棋一样。我就模仿的写了一下:#include#include#include#include#include#include#inc...
分类:其他好文   时间:2014-10-26 00:20:11    阅读次数:282
mybatis 2 -常用数据操作
1、写入数据并获取自增IDXML配置: insert into sys_loginlog (UserName) values (#{username}) 测试代码:@Test public void insertLog() { sys_loginlog...
分类:其他好文   时间:2014-10-25 15:48:51    阅读次数:283
oracle-number(5,2)
insert into emp values(70000.123);只能存储整数的前3位, 小数点后面的2位
分类:数据库   时间:2014-10-24 22:14:38    阅读次数:369
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