问将C和python与Bash结合使用

EN

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
    int i;
    double x;
    double pi;
    pi = M_PI;
    double increment;
    FILE * fp;

    fp = fopen ("FILE","w");
    x = 0;
    increment = 4* pi / 500;

    for (i = 0; i<=500; i++)
    {
        x = i * increment;
        printf("i: %d, tan(x): %f\n", i, tanf(x));
        fprintf (fp, "%d, %f\n",i, tanf(x));

    }
    fclose (fp);
    exit(0);
}

import matplotlib.pyplot as plt
import os


f = open("FILE", "r")
lines=f.readlines()
first =[]
second=[]
for x in lines:
    first.append(int(x.split(', ')[0]))
    second.append(float(x.split(', ')[1]))
f.close()

plt.plot(first, second)
plt.show()

os.remove("FILE")