Handling stdin in Go

Internal

• Go Code Examples
• Go Strings
• fmt Package

Handling stdin with fmt Functions

fmt.Scan()

https://golang.org/pkg/fmt/#Scan

Read text from stdin, storing successive space-separated values into successive arguments. Newlines count as space. It returns the number of items successfully scanned. If that is less than the number of arguments, err will report why.

var s string
cnt, err := fmt.Scan(&s)
fmt.Printf("input line: %s, cnt: %d, error: %s\n", s, cnt, err)

fmt.Scanf()

https://golang.org/pkg/fmt/#Scanf

var f float
cnt, err := fmt.Scanf("%f", &f)

fmt.Scanln()

https://golang.org/pkg/fmt/#Scanln

var line string
fmt.Scanln(&line)