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#include<bits/stdc++.h>
using namespace std;
/**
* 功能：将指定的数字转为字符串
* 作者：黄海
* 时间：2019-10-31
* @param a
* @return
*/
string convertNumToStr(double a) {
string res;
//定义流ss
stringstream ss;
ss << a;
//将数字a转化成流ss
ss >> res;
//将流ss转化成字符串
return res;
}
int main() {
double a = 123.32;
string a_str=convertNumToStr(a);
cout << a_str<< endl;
return 0;
