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mistyrinth/18-11-28blog5.rb Secret

Created November 28, 2018 12:23
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18-11-28blog5.rb
str = "Welcome"
puts "元の文字列は #{str} です"
# 文字列の取得
puts "str[2,4]は #{str[2,4]} です"
puts "str[2..4]は #{str[2..4]} です"
puts "str[2...4]は #{str[2...4]} です"
# 文字列の置き換え
str[2..4] = "abc"
puts "str[2..4]を置き換えた後の文字列は #{str} です"
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