#include <iostream>
#include <sstream>
#include <cassert>
#include <cstring>
#include <fstream>
using namespace std;
int main()
{
ifstream read;
string file="E:\\test.txt";//檔案路徑
read.open(file.data());
assert(read.is_open());//如果打開檔案失敗,則輸出錯誤消息,并終止運作
read >> noskipws;//設定可以讀取空白符
string str1,str2;
char c;
int cou=0;//計數
double sum=0, temp;
while(!read.eof())
{
read >> c;
if(c ==' '||c=='\n'||read.eof())
{
//字元串轉換為數字
stringstream s;
s.str(str1);
s >> temp;
//求和
sum+=temp;
//設為0,防止檔案末尾出現空行
temp = 0;
str1="";
}
else
{
cou++;//統計數字個數
//将字元轉換為字元串
stringstream ss;
ss << c;
str2=ss.str();
str1+=str2;
}
}
cout<<"實數個數為:";
cout<<cou<<endl;
cout<<"平均值為:";
cout<<sum/cou<<endl;
read.close();
}