Programming Language Interaction

# python call go

1. go 文件添加导入 import "C"
2. go 文件在需要导出的函数上添加注释 //export run
3. 执行构建 go build -buildmode=c-shared -o test.so test.go
4. python 文件 使用 CDLL 导入 so CDLL('./utils/test.so').run

utils/test.go

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package main

import "C"

//export run
func run(n int) {
	for n > 0 {
		n = n - 1
	}
}

func main() {

}

test.py

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import time
from ctypes import CDLL

run = CDLL('./utils/test.so').run

target = 1000000000

start = time.time()
run(target)
end = time.time()
print(end - start)