Ruby - 防止自动转义字符

Question

我有例如r = "\t"和a = "thisisabigbad\wolf"

如何防止ruby自动转义我的字符串并同时计算\？

a.count r #=> this should return 2 instead of 0

我希望a.count并接收2

Answer 1

您可以使用单引号：

[17] pry(main)> r = '\t'
=> "\\t"
[18] pry(main)> r.size
=> 2
[20] pry(main)> a = 'thisisabigbad\wolf'
=> "thisisabigbad\\wolf"
[21] pry(main)> a.size
=> 18