The answer to the mystery is revealed: Which language is used at the bottom of the Go language?

Go language, as an efficient programming language, has received widespread attention and application due to its simplicity, efficiency, ease of use and other characteristics. However, many people still have doubts about which language is used at the bottom of the Go language. This article will reveal the answer to this mystery and illustrate it with specific code examples.

As we all know, Go language is a programming language developed by Google to improve development efficiency and performance. The underlying implementation of the Go language has always been one of the focuses of developers, because it will help us understand more deeply the design principles and advantages of this language.

In fact, the underlying implementation of Go language mainly uses C language. In the official source code of the Go language, you can see a large amount of C language code, which is mainly used to interact with the operating system and implement underlying system calls and other operations. In this way, the Go language can achieve cross-platform features, efficiently manage system resources, and ensure program stability and performance.

Next, we use a simple code example to illustrate how the underlying Go language uses C language. We write a simple Go program that uses C language header files and function libraries to obtain and print the system time.

First, we create a Go language source file main.go, the code is as follows:

package main

// #include <stdio.h>
// #include <time.h>
//
// void printCurrentTime() {
//     time_t rawtime;
//     struct tm * timeinfo;
//     time(&rawtime);
//     timeinfo = localtime(&rawtime);
//     printf("Current time: %s", asctime(timeinfo));
// }
import "C"

func main() {
    C.printCurrentTime()
}

In the above code, pass #cgo The instruction introduces the C language header file and function library, and writes a printCurrentTime function to obtain the current time and print it.

Next, we run the following command in the terminal to compile and run the Go program:

go build -o demo main.go
./demo

The running result will output the current system time, thus proving that we use C language to implement it The underlying functionality of Go programs.

To sum up, the bottom layer of Go language does use C language to implement some underlying functions and system calls. This design makes Go language outstanding in terms of performance and cross-platform support. Through the introduction and code examples of this article, I believe readers will have a deeper understanding of the underlying implementation of the Go language. I hope this article can help readers better understand and apply the Go language.

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