From b850c01a30f56bd522223d2423a803f5d48c4b5f Mon Sep 17 00:00:00 2001 From: Jeff Date: Tue, 17 Mar 2015 10:16:32 +0800 Subject: [PATCH] Update 12.1.md --- eBook/12.1.md | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/eBook/12.1.md b/eBook/12.1.md index 545f74a..c564625 100644 --- a/eBook/12.1.md +++ b/eBook/12.1.md @@ -129,19 +129,16 @@ func main() { **练习** -**Exercise 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: -i) the number of characters including spaces (but excluding ‘\r’ and ‘\n’) -ii) the number of words -iii) the number of lines +**练习 12.1:** word_letter_count.go +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) 输入的字符的个数，包括空格，但不包括 '\r' 和 '\n' +ii) 输入的单词的个数 +iii) 输入的行数 -**Exercise 12.2:** calculator.go -Make a simple (reverse polish notation) calculator. This program accepts input from the user in the -form of integers (maximum 999999) and operators (+, -, *, /). - -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 +**练习 12.2:** calculator.go +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 +、-、*、/。 +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。 ## 链接