mirror of
https://github.com/RussellChamp/advent-of-code-2021.git
synced 2026-10-27 21:52:32 +00:00
45 lines
659 B
Go
45 lines
659 B
Go
package main
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
// func short_read() {
|
|
// dat, err := os.Open("./short_file.txt")
|
|
// tryMe(err)
|
|
// defer dat.Close()
|
|
|
|
// bytes := ??
|
|
// }
|
|
|
|
func tryMe(e error) {
|
|
if e != nil {
|
|
fmt.Println("OH SNAP!")
|
|
panic(e)
|
|
}
|
|
}
|
|
|
|
func files() {
|
|
dat, err := os.ReadFile("./data.txt")
|
|
tryMe(err)
|
|
|
|
fmt.Print(string(dat))
|
|
fmt.Println("\n---")
|
|
|
|
f, err := os.Open("./data.txt")
|
|
tryMe(err)
|
|
coupleBytes := make([]byte, 10)
|
|
num, err := f.Read(coupleBytes)
|
|
tryMe(err)
|
|
fmt.Println(num, string(coupleBytes))
|
|
|
|
reader := bufio.NewReader(f)
|
|
rBuf, err := reader.Peek(5)
|
|
tryMe(err)
|
|
fmt.Println("buff reader", string(rBuf))
|
|
|
|
f.Close()
|
|
}
|