本文主要是介绍3.27作业，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1、完成下面类（已经过修改）
#include <iostream>
#include <cstring>
using namespace std;class myString
{
private:char *str; //记录c风格的字符串int size; //记录字符串的实际长度
public://无参构造myString():size(10){str = new char[size]; //构造出一个长度为10的字符串strcpy(str,"");cout << "myString的无参构造" << endl;}//有参构造myString(const char *s){size = strlen(s);str = new char[size+1];strcpy(str,s);cout << "myString的有参构造" << endl;}//拷贝构造myString(const myString &other):str(new char[other.size]),size(other.size){strcpy(str,other.str);cout << "myString的拷贝构造函数" << endl;}//析构函数~myString(){delete []str;}//判空函数bool myempty(){string s1 = str;return s1.empty();}//size函数int mysize(){string s1 = str;return s1.size();}//c_str函数const char *myc_str(){return str;}//at函数char &at(int pos){string s1 = str;if(pos<0 || pos>=size-1) {cout << "访问越界" << endl;}return s1.at(pos);}void show(){cout << "str = " << str << endl;cout << "size = " << size << endl;}
};int main()
{myString s1;s1.show();myString s2("Hello World");s2.show();myString s3(s2);return 0;
}
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