Length of string

---

examples/string-length/string_length.go

package main

import "fmt"

func main() {
    a := "Hello"
    la := len(a)
    fmt.Printf("%v  %v\n", a, la)

    b := ""
    lb := len(b)
    fmt.Printf("%v  %v\n", b, lb)

    c := "Hello World!"
    lc := len(c)
    fmt.Printf("%v  %v\n", c, lc)

}