golang numbers to characters

Go language is an excellent development language, flexible and efficient, especially suitable for network programming and high concurrency scenarios. When we use Golang to convert numbers to characters, there are two methods:

Method 1:

Use the fmt.Sprintf() function to convert between numbers and strings. The function prototype is as follows:

func Sprintf(format string, a...interface{}) string

The first parameter is the format string, and the second parameter is interface {} type variable parameters, the return value is string type.

The code demonstration is as follows:

package main

import (
    "fmt"
)

func main() {

    num := 123 //数字
    str := fmt.Sprintf("%d", num) //数字转字符
    fmt.Println(str) //输出字符串123
}

Method 2:

Use the strconv package to convert between numbers and strings. This package provides functions for converting between strings and basic data types.

For example:

• strconv.Itoa(): Convert integer to string type
• strconv.Atoi(): Convert string to integer type
• strconv.ParseFloat(): Convert the string to float64 type

The code demonstration is as follows:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    num := 123 //数字
    str := strconv.Itoa(num) //数字转字符
    fmt.Println(str) //输出字符串123
}

In summary, Golang numbers are converted to characters mainly through fmt .Sprintf() function and strconv package are implemented. Depending on the usage scenario, we can choose different methods for implementation.

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