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C++С³ÌÐòÇóÖú
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#include<iostream> #include <iomanip> #include <fstream> #include<cmath> using namespace std; void main() { int i, j; ifstream fileinput; fileinput.open("e:\\X.txt" ;ofstream outfile; outfile.open("e:\\out.txt" ;double v, d, data[483266][5]; for (i = 1;i<483266;i++)for (j = 1;j <= 4;j++)fileinput >> data[j]; for (i = 1;i < 483266;i++) { int n = 0; for (j = 1;j < 5;j++) { n++; outfile << setiosflags(ios::fixed) << setprecision(20) << setiosflags(ios::left)<<data[j]<<" "; if (n == 4)outfile << endl; } } /*for (i = 1;i < 483266;i = i + 100) { d = data[2] / data[1]; v = fabs(data[3] * cos(30) + data[4] * cos(60)); if (data[1] > 0 && data[2] > 0 && 0.57735 <d< 0.577351) { outfile << setiosflags(ios::fixed) << setprecision(20) << setiosflags(ios::left) << data[1] << " " << " " << v << endl; } }*/ fileinput.close(); outfile.close(); ´ó¼ÒºÃ£¬ÎÒ¶ÁÈ¡ÓÐËÄÁÐÊý¾ÝµÄtxt,¶ÁÈ¡Íêºó°´ÔtxtÊý¾ÝµÄ˳ÐòÊä³ö£¬¿ÉÊǵõ½µÄÊý¾Ý˳ÐòÈ´ºÍÔtxtµÄÍêÈ«²»Ò»Ñù£¬ÇóÖ¸µã£¿ |
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