/
variables.go
54 lines (48 loc) · 934 Bytes
/
variables.go
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package main
import (
"bufio"
"fmt"
"github.com/labstack/gommon/log"
"os"
)
var myglobal float32 = 3.14
func countLines(f *os.File) int {
input := bufio.NewScanner(f)
var count int
for input.Scan() {
count++
}
return count
}
func Sample(name string) (int, error) {
fp, err := os.Open(name)
//defer func() {
// err = fp.Close()
// if err != nil {
// log.Fatal(err)
// }
//}()
if err != nil {
return 0, err
}
defer fp.Close()
return countLines(fp), nil
}
var (
gl1 = 42
gl2 = 108
)
func main() {
var local1 int16 = 35
local2 := 12000
fmt.Printf("myvalue = %#V\n", myglobal)
fmt.Printf("gl1 = %#V\n", gl1)
fmt.Printf("gl2 = %#V\n", gl2)
fmt.Printf("local1 = %#V\n", local1)
fmt.Printf("local2 = %#V\n", local2)
numlines, err := Sample(`D:\CourseGO\git\coursego\02-go-basics-lab\variables\variables.go`)
if err != nil {
log.Fatal(err)
}
fmt.Printf("Number lines in program: %d\n", numlines)
}