五种编程语言运行速度对比

# demo1.py和demo1-pypy.pyimport timet = time.time()a = 0for i in range(10**9+1):  a = a + iprint("python累加结果：", a)print("运行时间：", time.time() - t, "s")

// demo1.c#include <stdio.h>#include <stdlib.h>#include <time.h>#include <math.h>    int main(){  // 此处一定要指定long数据类型，否则会有限制，c累加结果: 4051657984   long i, a = 0;  clock_t start_time, end_time;  double duration_time;  start_time = clock();  // pow(10, 9)  for (i = 0; i <= 1000000000; i++)  {      a = a + i;  }  end_time = clock();  printf("c累加结果: %ld \n", a);  printf("运行时间: %lf s\n", ((double)(end_time - start_time) / CLOCKS_PER_SEC));  return 0;}

// demo1.gopackage main
import (  "fmt"  "strconv"  "time")
func main() {  var i, a uint64  var start_timestamp = time.Now().UnixNano() //单位纳秒 //获取当前时间戳,单位纳秒  for i = 0; i <= 1000000000; i++ {      a += i  }  var end_timestamp = time.Now().UnixNano()  fmt.Println("go累加结果", a)  var value, _ = strconv.ParseFloat(fmt.Sprintf("%f", float64(end_timestamp - start_timestamp)/1000000000), 64)  fmt.Println("运行时间：", value, "s")}

[root@sheng-vc pypy_c_go]# python3 demo1.pypython累加结果： 500000000500000000运行时间： 163.52063751220703 s

[root@sheng-vc pypy_c_go]# pypy3.9 demo1_pypy.pypypy累加结果： 500000000500000000运行时间： 2.0093536376953125 s

[root@sheng-vc pypy_c_go]# codon run demo1.pypython累加结果： 500000000500000000运行时间： 1.9895 s

[root@sheng-vc pypy_c_go]# codon build -o demo1_codon demo1.py[root@sheng-vc pypy_c_go]# ./demo1_codonpython累加结果： 500000000500000000运行时间： 2.1441 s

[root@sheng-vc pypy_c_go]# codon build -o demo1_codon_optimizations -release demo1.py[root@sheng-vc pypy_c_go]# ./demo1_codon_optimizationspython累加结果： 500000000500000000运行时间： 7.86781e-05 s0.000078 s

[root@sheng-vc pypy_c_go]# gcc -o demo1_c demo1.c[root@sheng-vc pypy_c_go]# ./demo1_cc累加结果: 500000000500000000运行时间: 3.400000 s

[root@sheng-vc pypy_c_go]# go build -o demo1_go demo1.go[root@sheng-vc pypy_c_go]# ./demo1_gogo累加结果 500000000500000000运行时间： 0.4734 s