Question

假设我有代码：

str = "foobar"
print "Enter in the letters you would like to match: "
match = gets
# Pseudocode:
str =~ /[match]/

我不想匹配整个字符串：匹配，我只想匹配每个字母，例如：

str =~ /[aeiou]/

会产生元音。我该怎么做才能匹配用户输入的字母？

Answer 1

试试这个：

match = gets.chomp # cut off that trailing \n
str =~ /[#{match}]/