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Merge pull request #81 from domainname/master

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12.1章节翻译完成
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2015-03-16 23:19:22 -04:00
parent 073d04b85b 2a00d2b8b5
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@@ -81,7 +81,6 @@ input, err := inputReader.ReadString('\n')
第二个例子从键盘读取输入，使用了 `switch` 语句： 第二个例子从键盘读取输入，使用了 `switch` 语句：
**Listing 12.3—switch_input.go:** **Listing 12.3—switch_input.go:**
```go ```go
package main package main
import ( import (
@@ -123,25 +122,22 @@ func main() {
default: fmt.Printf("You are not welcome here! Goodbye!\n") default: fmt.Printf("You are not welcome here! Goodbye!\n")
} }
} }
``` ```
注意：Unix和Windows的行结束符是不同的！ 注意：Unix和Windows的行结束符是不同的！
**练习** **练习**
**Exercise 12.1:** word_letter_count.go **练习 12.1:** word_letter_count.go
Write a program which reads text from the keybord. When the user enters ‘S’ in order to signal the end of the input, the program shows 3 numbers: 编写一个程序，从键盘读取输入。当用户输入 'S' 的时候表示输入结束，这时程序输出 3 个数字：
i) the number of characters including spaces (but excluding ‘\r’ and ‘\n’) i) 输入的字符的个数，包括空格，但不包括 '\r' 和 '\n'
ii) the number of words ii) 输入的单词的个数
iii) the number of lines iii) 输入的行数
**Exercise 12.2:** calculator.go **练习 12.2:** calculator.go
Make a simple (reverse polish notation) calculator. This program accepts input from the user in the 编写一个简单的逆波兰式计算器，它接受用户输入的整型数（最大值 999999）和运算符 +、-、*、/。
form of integers (maximum 999999) and operators (+, -, *, /). 输入的格式为：number1 ENTER number2 ENTER operator ENTER --> 显示结果
当用户输入字符 'q' 时，程序结束。请使用您在练习11.3中开发的 `stack` 包。
The input is like this: number1 ENTER number2 ENTER operator ENTER result is displayed.
The programs stops if the user inputs “q”. Use the package stack you developed in Ex. 11.3
## 链接 ## 链接