diff --git a/kensaku1.rb b/kensaku1.rb
new file mode 100644
index 0000000..e7a6f05
--- /dev/null
+++ b/kensaku1.rb
@@ -0,0 +1,11 @@
+#!/usr/bin/env ruby
+# coding: utf-8
+
+Encoding.default_external = 'utf-8'
+require 'csv'
+data = CSV.read('moji.csv', headers: true)
+data.each do |row|
+  if /i/ =~ row['moji'] #/i/が正規表現
+    puts row['moji']
+  end
+end
diff --git a/moji.csv b/moji.csv
new file mode 100644
index 0000000..4f7b043
--- /dev/null
+++ b/moji.csv
@@ -0,0 +1,6 @@
+moji
+i
+Programming
+Application
+I
+Image