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#include <fstream>
#include <string>
#include <iostream>
#include <vector>
using namespace std;
int read_scanf(const string &filename,const int &cols,vector<double *> &_vector)
// åè½ï¼å°filename ä¸çæ°æ®ï¼å
±colsåï¼è¯»åå°_vectorä¸ï¼_vectorå¯è§ä¸ºäºç»´æ°ç»
{
FILE *fp=fopen(filename.c_str(),"r");
bool flag=true;
int i=0;
if(!fp){ cout<<"File open error!\n"; return 0; }
while(flag)
{
double *point=new double[cols];
for(i=0;i<cols;i++) //读åæ°æ®ï¼åå¨_vector[cols]ä¸
{
if(EOF==fscanf(fp,"%lf",&point[i])){flag=false;break;};
if(EOF==fgetc(fp)){flag=false;i++;break;}
}
if(cols==i)_vector.push_back(point);
}
fclose(fp);
return 1;
}
void main()
{
string dir="E:/";
string file=dir+"test.txt";
//txtæ件ä¸æ4å
int columns=4;
vector<double *> output_vector;
if(!read_scanf(file,columns,output_vector))return;
//output_vectorå¯è§ä¸ºäºç»´æ°ç»;è¾åºæ°ç»å
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int rows=output_vector.size();
for(int i=0;i<rows;i++)
{
for(int j=0;j<columns;j++){cout<<output_vector[i][j]<<" ";}
cout<<endl;
}
system("pause");
return;
}
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E:/test.txt å
容ï¼ç©ºæ ¼å¯æ¢ä¸ºéå·ï¼åå·çï¼ï¼
81.081 0.000 39.420 255
80.954 0.000 38.441 255
83.890 0.000 31.327 255
84.061 0.000 31.097 255
84.120 0.000 31.045 160
84.120 0.000 31.045 160
ç¨åºè¾åºï¼
81.081 0 39.42 255
80.954 0 38.441 255
83.89 0 31.327 255
84.061 0 31.097 255
84.12 0 31.045 160
84.12 0 31.045 160
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