要求: 确保字符串的每个单词首字母都大写,其余部分小写. 像'the'和'of'这样的连接符同理. 结果: titleCase("I'm a little tea pot") 应该返回一个字符串 titleCase("I'm a little tea pot") 应该返回 "I'm A Little Tea Pot". titleCase("sHoRt AnD sToUt") 应该返回 "Short And Stou…
Title Case a Sentence(中单词首字母大写) 要求 确保字符串的每个单词首字母都大写,其余部分小写. 像'the'和'of'这样的连接符同理. 思路 将句子小写化后用.split(" ")将句子分隔成各单词组成的数组, 再用for循环将数组中每个单词用.split('')分隔成各个字母组成的数组,将数组中第一个元素大写,即首字母大写后用.join('')将字母合成单词 最后将各数组单词用.join(' ')合成句子 代码 function titleCase(str)…
地址:http://www.codewars.com/kata/5202ef17a402dd033c000009/train/python 题目: A string is considered to be in title case if each word in the string is either (a) capitalised (that is, only the first letter of the word is in upper case) or (b) considered…
freecodecamp 初级算法地址戳这里 Reverse a String 翻转字符串 function reverseString(str) { str=str.split("").reverse().join(""); return str; } reverseString("hello") Factorialize a Number 计算一个整数的阶乘 function factorialize(num) { if(num>1){…
Case具有两种格式.简单Case函数和Case搜索函数. 简单Case函数 CASE sex WHEN '1' THEN '男' WHEN '2' THEN '女' ELSE '其他' END --Case搜索函数 CASE WHEN sex = '1' THEN '男' WHEN sex = '2' THEN '女' ELSE '其他' END 种方式,可以实现相同的功能.简单Case函数的写法相对比较简洁,但是和Case搜索函数相比,功能方面会有些限制,比如写判断式.还有…
Given a string , write a program to title case every first letter of words in string. Input:The first line consists of an integer T i.e number of test cases. The first and only line of each test case consists of a string s. Output:Print the required…
单个值: UPDATE categories SET display_order = CASE id WHEN 1 THEN 3 WHEN 2 THEN 4 WHEN 3 THEN 5 END WHERE id IN (1,2,3); 多个值: UPDATE categories SET display_order = CASE id WHEN 1 THEN 3 WHEN 2 THEN 4 WHEN 3 THEN 5 END, title = CASE id WHEN 1 THEN 'New T…
如何用一条sql语句实现批量更新?mysql并没有提供直接的方法来实现批量更新,但是可以用点小技巧来实现. 复制代码 代码如下: UPDATE mytable SET myfield = CASE id WHEN 1 THEN 'value' WHEN 2 THEN 'value' WHEN 3 THEN 'value' END WHERE id IN (1,2,3); 这里使用了case when 这个小技巧来实现批量更新. 举个例子: 复制代码 代码如下: UPDATE categories…
UPDATE categories SET display_order = CASE id WHEN 1 THEN 3 WHEN 2 THEN 4 WHEN 3 THEN 5 END WHERE id IN (1,2,3); 这句sql的意思是,更新display_order 字段,如果id=1 则display_order 的值为3,如果id=2 则 display_order 的值为4,如果id=3 则 display_order 的值为5. 即是将条件语句写在了一起. 这里的where部分…
1. Introduction 1.1. About 1.2. Sphinx features 1.3. Where to get Sphinx 1.4. License 1.5. Credits 1.6. History 2. Installation 2.1. Supported systems 2.2. Compiling Sphinx from source 2.2.1. Required tools 2.2.2. Compiling on Linux 2.2.3. Known comp…
UPDATE categories SET display_order = CASE id WHEN 1 THEN 3 WHEN 2 THEN 4 WHEN 3 THEN 5 END, title = CASE id WHEN 1 THEN 'New Title 1' WHEN 2 THEN 'New Title 2' WHEN 3 THEN 'New Title 3' EN…
In today's post, I have put together all jQuery String Functions. Well, I should say that these are not "jQuery String Functions". These are "JavaScript String Functions". But as jQuery is built on top of JavaScript so you can use them…
MySQL decode()的等同实现 在Oracle中使用decode方法可以轻松实现代码和值之间的转换,但是在MySQL中该如何实现类似功能呢? MySQL中没有直接的方法可以使用,但是我们可以通过下面两种方法来实现: 1.case when then 如:Select title,case Emergency when 1 then '紧急' else '普通' End as emergency from already_sign 2.if …
1 collections系列 方法如下 class Counter(dict): '''Dict subclass for counting hashable items. Sometimes called a bag or multiset. Elements are stored as dictionary keys and their counts are stored as dictionary values. >>> c = Counter('abcdeabcdabcaba'…
