Check if String is Numeric in Go

In Go language, you can use functions in the strconv package to determine if a string is a number. The specific steps are as follows:

package main

import (
	"fmt"
	"strconv"
)

func main() {
	str := "12345"

	_, err := strconv.Atoi(str)
	if err == nil {
		fmt.Println("字符串是数字")
	} else {
		fmt.Println("字符串不是数字")
	}
}

In the above example, we used the strconv.Atoi() function to convert a string into an integer and check for any errors. If there are no errors, it means the string is a number; otherwise, it is not.