如何在 Ruby 中检查字符串是否包含子字符串

问题描述：

我有一个包含内容的字符串变量:

I have a string variable with content:

varMessage =   
            "hi/thsid/sdfhsjdf/dfjsd/sdjfsdn
"


            "/my/name/is/balaji.so
"
            "call::myFunction(int const&)
"
            "void::secondFunction(char const&)
"
             .
             .
             .
            "this/is/last/line/liobrary.so"

在字符串中我必须找到一个子字符串:

In the string I have to find a sub-string:

"hi/thsid/sdfhsjdf/dfjsd/sdjfsdn
"

"/my/name/is/balaji.so
"
"call::myFunction(int const&)
"

我怎样才能找到它?我需要确定子字符串是否存在.

How can I find it? I need to determine whether the sub-string is present or not.

答

您可以使用 include? 方法:

You can use the include? method:

my_string = "abcdefg"
if my_string.include? "cde"
   puts "String includes 'cde'"
end

如何在 Ruby 中检查字符串是否包含子字符串

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