Differences between strings in different languages ​​and Go language strings

The main differences between Go language strings and other language strings: Immutable: cannot be modified after creation. Unicode encoding: supports text in different languages. UTF-8 encoding: can represent all Unicode characters. No null terminator: save byte space.

The difference between Go language strings and other language strings

Strings are one of the most common data types in programming 1, and is widely used in various programming languages. Although strings in most languages ​​share some characteristics, they also differ in some important ways.

Strings in Go language are immutable. This means that once a string is created, it cannot be modified. If a string needs to be changed, a new string must be created. This immutability is crucial to ensure safety from concurrency, as multiple goroutines can safely access the same string value without fear of concurrent modification.

Strings in Go language are Unicode encoded. This allows the storage and processing of text from different languages ​​around the world. This gives Go a significant advantage over other languages ​​that only support ASCII encoding, such as C.

Strings in Go language use UTF-8 encoding. UTF-8 is a variable-length encoding that allows any Unicode character to be represented while maintaining a small byte size. This makes Go language strings suitable for text processing and network transmission.

There is no null terminator in Go language. Unlike other languages ​​such as C and C, Go language strings do not require a null terminator, which saves byte space and simplifies string processing.

Practical case

Consider the comparison of the following code in different languages:

// Go
package main

func main() {
    s := "Hello, world!"
    log.Println(s)
}

// Java
public class Main {
    public static void main(String[] args) {
        String s = "Hello, world!";
        System.out.println(s);
    }
}

// Python
def main():
    s = "Hello, world!"
    print(s)

if __name__ == "__main__":
    main()

In the Go language, strings are immutable, so The = operator cannot be used for splicing. Furthermore, the Go language does not have a null terminator. In Java, strings are mutable, can be concatenated using the = operator, and require a null terminator. In Python, strings are also immutable, can be concatenated using the = operator, and do not require a null terminator.

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