第十八章 4string 字符串的合并
#include <iostream> #include <string> using namespace std; int main() { //char字符数组的的合并 char ch1[40] = "what's your name "; char ch2[] = "my name is jack"; strcat(ch1,ch2); cout<<"ch1:"<<ch1<<endl; cout<<"ch2:"<<ch2<<endl<<endl<<endl; //string类字符串的合并 string str1 = "what's your name "; string str2 = "my name is jack"; str1= str1 + str2; cout<<"str1:"<<str1<<endl; cout<<"str2:"<<str2<<endl; cout<<strlen(str1.c_str())<<endl; //将一个string对像转换为char字符串数组 cout<<"str1.size:"<<str1.size()<<endl; cout<<"str2.size:"<<str2.size()<<endl; cout<<"str1.strlen:"<<str1.length()<<endl; cout<<"str2.strlen:"<<str2.length()<<endl; string str3; cout<<"str3.size:"<<str3.size()<<endl; return 0; }