#include <fstream>
#include <iostream>
#include <string>
using namespace std;
//格式化读取
//起始点读取
void readformat_0(int* hour_0, int* minute_0, float* second_0, int tem[13],
float* pressure, ifstream & prefile)
{
char str1[15];
char str2[15];
char timeh[3];
char timem[3];
char times[7];
prefile >> str1 >> str2 >> tem[0] >> tem[1] >> tem[2] >> tem[3] >> *pressure >>tem[4]
>> tem[5] >>tem[6] >> tem[7] >> tem[8] >> tem[9] >> tem[10] >> tem[11] >> tem[12];
timeh[0] = str2[0]; timeh[1] = str2[1]; timeh[2] = '\0';
sscanf(timeh, "%d", hour_0);
timem[0] = str2[3]; timem[1] = str2[4]; timem[2] = '\0';
sscanf(timem, "%d", minute_0);
for(int i=0; i<6; i++)
{
times[i] = str2[6+i];
}
times[6] = '\0';
sscanf(times, "%f", second_0);
};
//其他时间读取，同时计算从初始开始的时间
void readformat(int hour_0, int minute_0, float second_0, float* time_tr,
int tem[13], float* pressure, ifstream & prefile)
{
char str1[15];
char str2[15];
char timeh[3];
char timem[3];
char times[7];
int hour;
int minute;
float second;
prefile >> str1 >> str2 >> tem[0] >> tem[1] >> tem[2] >> tem[3] >> *pressure >>tem[4]
>> tem[5] >>tem[6] >> tem[7] >> tem[8] >> tem[9] >> tem[10] >> tem[11] >> tem[12];
timeh[0] = str2[0]; timeh[1] = str2[1]; timeh[2] = '\0';
sscanf(timeh, "%d", &hour);
timem[0] = str2[3]; timem[1] = str2[4]; timem[2] = '\0';
sscanf(timem, "%d", &minute);
for(int i=0; i<6; i++)
{
times[i] = str2[6+i];
}
times[6] = '\0';
sscanf(times, "%f", &second);
*time_tr = second-second_0 + 60.0*(minute-minute_0) + 3600.0*(hour-hour_0);
};
//格式化输出
void excelformat(float time_tr, int tem[13], float pressure, ofstream & outfile)
{
outfile.width(10);outfile.precision(3);outfile.setf(ios::fixed);
outfile << time_tr ;
for (int i = 0; i < 4; i++)
{
outfile.width(4); outfile << tem[i];
}
outfile.width(7); outfile.precision(3);outfile.setf(ios::fixed);
outfile << pressure;
for (int i = 4; i < 11; i++)
{
outfile.width(4); outfile <<tem[i];
}
outfile.width(7); outfile << tem[11];
outfile.width(4); outfile << tem[12];
outfile << endl;
};
int main()
{
//打开文件进行读取
ifstream prefile;
ofstream outfile;
prefile.open("test.txt",ios::in);
outfile.open("test_new.txt");
if(!prefile.is_open())
{
cout << "failed open" << endl;
}
cout << "Reading from the file" << endl;
//读取前两行的表头信息，整行读取
int tem[13];
float pressure;
int hour_0;
int minute_0;
float second_0;
float time_tr = 0.0;
//读取表格信息
//读取第一行，为时间零点，输出到新文件
readformat_0(&hour_0, &minute_0, &second_0, tem, &pressure, prefile);
excelformat(time_tr, tem, pressure, outfile);
//读取其他行，得到对应的时间，输出到新文件
while (!prefile.eof())
{
readformat(hour_0, minute_0, second_0, &time_tr, tem, &pressure, prefile);
excelformat(time_tr, tem, pressure, outfile);
}
cout << "transfer completed!" <<endl;
prefile.close();
outfile.close();
return 0;
}
