1.对判断的字段进行拆分 select substr(要区分的字段,0,1) from 表 : 得到一个 首字母 2.对这个字符进行大小写判断 查出以小写字符为开头的 select substr(要区分的字段,0,1) from 表 where substr(要区分的字段,0,1)=lower((substr(要区分的字段,0,1) )) ; 查出以小写字符为开头的 select substr(要区分的字段,0,1) from 表 where substr(要区分的字段,0,
Java判断一个字符串中有多少大写字母.小写字母和数字 思路: 大写字母就是A-Z之间,小写字母是a-z之间,数字就是0-9之间,于是做判断就好:用到的String知识点,遍历字符串, 长度方法length() 和转char数据类型的toCharArray()方法. 代码如下: import java.util.Scanner; public class Test { public static void main(String[] args) { System.out.println("請輸入
与孩子一起编程,有个作业题:用大写字母打印你的名字. CCCC A RRRRR C C A A R R C A A R R C AAAAAAA RRRRR C C A A R R CCCC A A R R 我没有看答案,自己想了想,又百度了一下.得到一个思路如下 1 定义一个dic,里面的key为26个英文字母,每个key对应的value,为该字母组成的字符,如下: dic_A={ 'A':[ ' A ', ' A A ', ' A A ', ' AAAAAAA ', ' A A ', 'A A
Given a word, you need to judge whether the usage of capitals in it is right or not. We define the usage of capitals in a word to be right when one of the following cases holds: All letters in this word are capitals, like "USA". All letters in t
Problem Description Eddy usually writes articles ,but he likes mixing the English letter uses, for example "computer science" is written frequently "coMpUtEr scIeNce" by him, this mistakes lets Eddy's English teacher be extremely disco