一、查看当前字符集 mysql> show variables like '%char%'; 二、修改字符集 ```sh mysql> show variables like '%char%'; 二、修改字符集 在[mysqld],[mysql],[client]下分别添加如下内容 [mysqld] character_set_server = utf8 [mysql] default-character-set=utf8 [client]
Person.hpp代码如下: #ifndef PERSON_HPP #define PERSON_HPP #include<iostream> #include<ostream> #include<istream> #include<string> #include<iomanip> using namespace std; class Person { public: Person() {} Person
实验任务2 Person.hpp #include<iostream> #include<string> using namespace std; class Person{ public: Person(){}; Person(string a,string b,string c=" "):name(a),telephone(b),email(c){} void set_telephone(s
要点如下:将要区分大小写的字段上直接设置如下内容 CHARACTER SET utf8mb4 COLLATE utf8mb4_bin 字段设置为区分大小写、 SET NAMES utf8mb4; SET FOREIGN_KEY_CHECKS = 0; -- ---------------------------- -- Table structure for chentest -- -------------------------
person.hpp: #ifndef PERSON_HPP #define PERSON_HPP #include<iostream> #include<iomanip> #include<string> using namespace std; class Person{ private: string name; string telephone; string email; public: Person(){}; Perso
任务2 Person.hpp #pragma once #include<iostream> #include<iomanip> using namespace std; class Person { private: string name; string telephone; string email; public: Person() {}; Person(string na,string tel,string ema) {
Task2 Person.hpp #include<bits\stdc++.h> using namespace std; class Person { public: Person(); Person(string _name,string _telephone):name(_name),telephone(_telephone){} void change_telephone(string a) { telephone=a;
三、实验内容 2. 实验任务2 Person.hpp: #ifndef PERSON_HPP #define PERSON_HPP #include<iostream> using namespace std; class Person{ private: string name,telephone,email; public: Person() {} ~Person() {} Person(string
实验结论: 实验任务2: Person.hpp #ifndef Person_hpp #define Person_hpp #include <iostream> #include <string> #include <iomanip> using namespace std; class Person{ public: Person(){} ~Person(){} Person(string nam
task2: Person.hpp #ifndef PERSON_HPP #define PERSON_HPP #include<iostream> #include<string> using namespace std; class Person { private: string name; string telephone; string email; public: Person(string Name = "", s
task2: person.hpp: #include <iostream> #include <string> using namespace std; class Person { public: Person() { } Person(string a, string b, string c = " ") : name(a), telephone(b), email(c) { } friend ostream&a
Person.hpp #ifndef PERSON_H #define PERSON_H #include <iostream> #include <iomanip> #include <string> using std::cout; using std::cin; using std::endl; using std::ostream; using std::istream; using std::string; class Person { private
实验二: task2.cpp: #include <iostream> #include <fstream> #include <vector> #include "Person.hpp" int main() { using namespace std; vector<Person> phone_book; Person p; while (cin >> p) phon
#include<iostream> #include<string> #include<fstream> #include <vector> #include"person.h" using namespace std; int main() { vector<person> phone_book; person p; while (cin >> p) phone_book.push_back
task2: person.h: #ifndef UNTITLED22_PERSON_H #define UNTITLED22_PERSON_H #include<iostream> #include<string> using namespace std; class Person { private: string name; int telephone; string email; public: Person(string n="
Person.hpp #ifndef PERSON_HPP #define PERSON_HPP #include<iostream> #include<string> #include<iomanip> using namespace std; class Person { public: Person() {}; Person(string n, string t, string e ="") :name(n), telep
task2 //Person.hpp #include<iostream> #include<string> #include<iomanip> using namespace std; class Person{ private: string name; string telephone; string email; public: Person(string Name, string
更新conda报错 CondaValueError: Malformed version string ‘~’: invalid character(s). conda -V 或 conda --version 查看conda版本 conda update conda 更新conda 更新conda时报错: CondaValueError: Malformed version string '~': invalid character(s). 解决方案:换源
Python 3 写文件 UnicodeEncodeError: 'gbk' codec can't encode character 网页代码中存在“”<meta charset="gbk">“”,如果存为 utf-8,再用浏览器打开,会出现乱码。因此,必须存为 gbk。 解决方法: 在写入 string 到文件时,采用 string.encode("gbk", 'ignore').deco
Character 类用于对单个字符进行操作。 Character 类在对象中包装一个基本类型 char 的值 然而,在实际开发过程中,我们经常会遇到需要使用对象,而不是内置数据类型的情况。为了解决这个问题,Java语言为内置数据类型char提供了包装类Character类。 Character类提供了一系列方法来操
single Character multiple Character
SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, '(', CHARACTER_MAXIMUM_LENGTH, ') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci', (CASE WHEN IS_NU
Unit 12 - Notes on the English Character Notes on the English Character E·M·Forster First note. I had better let the cat out of the bag at once and record my opinion that the character of the English is essentially middle class. There is sound historical
题目:Problem - C - Codeforces 如代码,一共有七种情况,注意不要漏掉 "accabba" , "abbacca" 两种情况; 使用find()函数可简化代码,使用方法如下 代码: #include <iostream> using namespace std; typedef long long ll; int main() { ios::sync_with_stdio(false); cin
使用windows版本的nginx启动时遇到(1113: No mapping for the Unicode character exists in the target multi-byte code page)这个错误 把nginx的版本升高了,依旧报错 后来查阅发现是因为解压的路径里面包含有中文的缘故,只要把解压后的文件剪切到没有包含中文的目录即可解决问题