C++ string and vector; string and char* char[] conversion;

1. string to vector

vec.assign(str.begin(), str.end());

#include<iostream>
#include<string>
#include<cstring>
#include<algorithm>
using namespace std;
int main(){
    
    
	string str = "hello world!";
	vector<uint8_t> vec;
	vec.assign(str.begin(), str.end());
	for(size_t i=0; i<vec.size(); i++){
    
    
		cout<<vec[i]<<" ";
	}
	cout<<endl;
	return 0;
}

2.vector to string

#include<iostream>
#include<string>
#include<cstring>
#include<algorithm>
using namespace std;
int main(){
    
    
	string str;
	vector<char> vec={
    
    'a','a','a','b','a'};
	str.assign(vec.begin(), vec.end());
	cout<<str<<endl;
	
	// vector<string> 转 string
	string str2;
	vector<string> vec2{
    
    "hhh", "zzz"};
    str2 = accumulate(vec2.begin(), vec2.end(), str2);
    cout<<"str2 = "<<str2<<endl;
	
	return 0;
}


String, char *, char[] mutual conversion conversion

reproduced

String, char *, char[] mutual conversion conversion

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Origin blog.csdn.net/qq_46084757/article/details/126052937