f0305.cpp 字符串操作

//====================//f0305.cpp//字符串操作//====================#include<iostream>#include<algorithm>#include<string>using namespace std;//--------------------int main(){string a, s1 = "hello ";string s2 = "123";a = s1; //复制cout << (a == s1 ? " " : "not ") << "equal." <<endl;cout << a + s2 <<endl; //连接reverse(a.begin(),a.end()); //倒置cout << a <<endl; cout << a.replace(0,9,9,'c') <<endl; //替换cout << (s1.find("ell") != -1 ? " " : "not ") << "found." <<endl; //查找字符串cout << (s1.find('c') != -1 ? " " : "not ") << "found." <<endl; //查找字符char * str10;char * str20 = new char[5];strcpy(str20,"ugly"); //strcpy(str10,str20); //str10没有空间可存储，编译无错，运行错误？？？strcpy(str20,"helloworld");// 存储空间不够？？但是编译运行无错？？cout << str20 <<endl;//str20 =　"hell"; //原来ugly空间脱钩，导致内存泄露？？？为什么编译错误？return 0;}//====================