[Ruby] Summary of how to get values from standard input [Paiza skill check measures]

Get value from one line

#========================================
Put the gets method in the pattern 1 variable and output with puts
#========================================
n = gets
puts n


#========================================
Pattern 2 How to use stdin
#========================================
puts $stdin.gets

Get elements from multiple lines and output

Standard input 2 4 7

#========================================
pattern 1
#========================================


#========================================
Pattern 2
#========================================
puts $stdin.readlines

readlines reads the multi-line value obtained by stdin as an "array". You can also put it in a variable with n = $ stdin.readlines and doputs n [0].

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