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mistyrinth/18-11-28blog6.rb Secret

Created November 28, 2018 13:05
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18-11-28blog6.rb
str = "Welcome"
puts "元の文字列は #{str} です"
# 文字列の挿入
ins = str.insert(3,"yes")
puts "3番目の位置に yes を挿入すると #{ins} です"
# 文字列の検索
str = "Welcome"
pos = str.index("co")
puts "co を検索した結果、左からの位置は #{pos} 番目です"
puts "come が含まれているかどうかの結果は #{str.include?("come")} です"
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