Series.isxxxx()Series.isin():WhetherelementsinSeriesarecontainedin values.top_oceania_wines=reviews[(reviews.country.isin(['Australia','NewZealand']))&(reviews.points>=95)Series.str.islower():Checkwh

Youaregivenastringtitleconsistingofoneormorewordsseparatedbyasinglespace,whereeachwordconsistsofEnglishletters.Capitalizethestringbychangingthecapitalizationofeachwordsuchthat:Ifthelengthofthewordis1or2letters

由于ES不能像关系型数据库直接修改类型，所以要借助中间索引来完成1、创建中间索引(字段维护正确的)put:https://localhost/track_bak{"settings":{"index":{"number_of_shards":"3","number_of_replicas":"1&quo

背景：在搜索的时候经常会有一种场景就是忽略大小写，不管你输入的是全大写还是全小写还是大小写混合，希望都能够搜索出结果。解决思路：Elasticsearch中的lowercasenormalizer将文本转换为小写，并将其作为规范形式存储在索引中。这可以确保在搜索和比较文本时忽略大写字母的差异，从而提

ThePsychologyofaWTLProject:LowercaseCause(atypingprogram) DownloadLowercaseCause-939KbDownloadLowercaseCausewithoutsounds-

代码如下：#include<stdio.h>intmain(){charcapital,lowercase;printf("请输入大写字母！\n");capital=getchar();while(capital<65||capital>90){printf("输入