Create 12.1.md

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Jeff
2015-03-16 23:39:48 +08:00
parent 57f146c73b
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# 读取用户的输入
我们如何读取用户的键盘控制台输入呢从键盘和标准输入os.Stdin读取输入最简单的办法是使用 `fmt` 包提供的 Scan 和 Sscan 开头的函数。请看以下程序:
Listing 12.1—readinput1.go:
```go
// read input from the console:
package main
import "fmt"
var (
firstName, lastName, s string
i int
f float32
input = "56.12 / 5212 / Go"
format = "%f / %d / %s"
)
func main() {
fmt.Println("Please enter your full name: ")
fmt.Scanln(&firstName, &lastName)
// fmt.Scanf("%s %s", &firstName, &lastName)
fmt.Printf("Hi %s %s!\n", firstName, lastName) // Hi Chris Naegels
fmt.Sscanf(input, format, &f, &i, &s)
fmt.Println("From the string we read: ", f, i, s)
// output: From the string we read: 56.12 5212 Go
}
```
## 链接
- [目录](directory.md)
- 上一节:[读写数据](12.0.md)
- 下一节:[文件读写](12.2.md)