Golang characters are converted to uppercase

Golang is a modern programming language that is widely used in the development of various applications. Among them, string operations are indispensable, and converting strings to uppercase is a very common requirement. So how to convert a string to uppercase in Golang?

In Golang, there is a built-in package strings, which provides some string processing functions, including the function ToUpper that converts strings to uppercase. The following is an example of using the ToUpper function:

package main

import (
    "fmt"
    "strings"
)

func main() {
    str := "hello, world!"
    strUpper := strings.ToUpper(str)
    fmt.Println(strUpper)
}

In the above program, we first imported the two packages fmt and strings. In the main function, we defined a string variable str and set it The value is "hello, world!". We then convert it to uppercase using the ToUpper function and store the result in the variable strUpper. Finally, we use the Println function from the fmt package to output strUpper to the terminal.

Run the above code, we will see the output is:

HELLO, WORLD!

As you can see from the above example, it is very simple to use the ToUpper function to convert a string to uppercase. It should be noted that the ToUpper function returns a copy of the string and does not modify the original string variable. Therefore, if you need to use the converted string, you should store it into a new variable.

In addition to the ToUpper function, the strings package also provides some other string processing functions, such as ToLower, EqualFold, Contains, etc. If you need to do more string processing operations, it is recommended to check the documentation of the package to find functions that suit your needs.

In short, converting a string to uppercase in Golang is very simple, just use the ToUpper function in the strings package. I hope this article can be helpful to everyone!

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