php一个 . 就连接了,再次说明了php是世界上最好的语言
#include <iostream>
#include <string>
#include <cstdlib>
#include <sstream>
#include <cstring>
using namespace std;
//第一种C风格的转化
void test()
{
char *s = "dong";
int a = 52;
float b = .1314;
char *buf = new char[strlen(s) + sizeof(a) + 1];
sprintf(buf, "%s%d%.4f", s, a, b);
printf("%s\n", buf);
}
// //半C半C++风格,
// void test1()
// {
// string s = "dong";
// int a = 520;
// char *buf = new char[10];//2147483647 int最大值
// _itoa(a, buf, 10); //itoa虽然可以转化为各种进制,但是注意不能是float或者double
// cout << s + buf << " | ";
// _itoa(a, buf, 16);
// cout << s + buf << endl;
// }
//纯C++风格
void test2()
{
string s = "陈明东";
int a = 52;
double b = .1314;
ostringstream oss;
oss << s << a << b;
cout << oss.str() << endl;
}
//C++11新特性
void test3()
{
int a = 520;
float b = 5.20;
string str = "dong";
string res = str + to_string(a);
cout << res << endl;
res = str + to_string(b);
res.resize(8);
cout << res << endl;
}
int main()
{
test();
// test1(); 这种方式下我的ide会提示_itoa 方法不存在,有知道的可以下面评论下
test2();
test3();
return 0;
}
![](https://img.haomeiwen.com/i10306662/f62623869f8332c7.png)
转载地址
https://blog.csdn.net/program_anywhere/article/details/63720261
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