Ruby Hash to_s方法
Hash#to_s()是一个Hash类方法,它给出了哈希的字符串表示。
语法。Hash.to_s()
参数:哈希值
返回:哈希值的字符串表示法。
例子 #1 :
# Ruby code for Hash.to_s() method
# declaring Hash value
a = {a:100, b:200}
# declaring Hash value
b = {a:100, c:300, b:200}
# declaring Hash value
c = {a:100}
# to_s Value
puts "Hash a to_s form : #{a.to_s()}\n\n"
puts "Hash b to_s form : #{b.to_s()}\n\n"
puts "Hash c to_s form : #{c.to_s()}\n\n"
输出:
Hash a to_s form : {:a=>100, :b=>200}
Hash b to_s form : {:a=>100, :c=>300, :b=>200}
Hash c to_s form : {:a=>100}
例子 #2 :
# Ruby code for Hash.to_s() method
# declaring Hash value
a = {"a" => 100, "b" => 200 }
# declaring Hash value
b = {"a" => 100}
# declaring Hash value
c = {"a" => 100, "c" => 300, "b" => 200}
# to_s Value
puts "Hash a to_s form : #{a.to_s()}\n\n"
puts "Hash b to_s form : #{b.to_s()}\n\n"
puts "Hash c to_s form : #{c.to_s()}\n\n"
输出:
Hash a to_s form : {"a"=>100, "b"=>200}
Hash b to_s form : {"a"=>100}
Hash c to_s form : {"a"=>100, "c"=>300, "b"=>200}