源码ex6-2.rb ：
types_of_people = 10
x = "There are #{types_of_people} types of people."
binary = "binary"
do_not = "don‘t"
y = "Those who know ‘#{binary}‘ and those who #{do_not}."
z = ‘Those who know "#{binary}" and those who #{do_not}.‘
puts x
puts y
puts "I said: #{x}"
puts "I also said: ‘#{y}‘."
puts "I also said: ‘#{z}‘."
结果是：
[[email protected] rubywork]$ ruby ex6-2.rb
There are 10 types of people.
Those who know ‘binary‘ and those who don‘t.
I said: There are 10 types of people.
I also said: ‘Those who know ‘binary‘ and those who don‘t.‘.
I also said: ‘Those who know "#{binary}" and those who #{do_not}.‘.
这里注意一点：
双引号里面的单引号是原样输出，而单引号里面的双引号也是原样输出。
双引号里面的变量的输出时，变量用实际的值代替后输出显示。
单引号是不管引号里面的是什么，都源码输出，也没有替代。
时间： 2024-08-29 23:59:50