Ruby 数组<=>()函数与实例 <=>是一个数组类方法，它在两个数组之间进行比较。 语法。<=> 参数。用于比较的数组 返回：-1：数组小于另一个数组 0：数组等于另一个数组 1：数组大于另一个数组 例子 #1 : # Ruby code for <=>() method # showing comparison # declaring array a = [18, 22, 33, 4, 5, 6] # declaring array b = [5, 4, 22, 1, 88, 9] # declaring array c = [18, 22, 33, 40, 50, 6] # 1 as a>b puts "comparison : #{a <=> b}\n\n" # -1 as a<c puts "comparison : #{a <=> c}\n\n" # -1 as b<c puts "comparison : #{b <=> c}\n\n"RubyCopy 输出: comparison : 1 comparison : -1 comparison : -1RubyCopy 例子 #2 : # Ruby code for <=>() method # showing comparison # declaring array a = ["abc", "xyz", "dog"] # declaring array b = ["cow", "cat", "dog"] # declaring array c = ["cat", "1", "dog"] # -1 as a<b puts "comparison : #{a <=> b}\n\n" # -1 as a<c puts "comparison : #{a <=> c}\n\n" # 1 as b>c puts "comparison : #{b <=> c}\n\n"RubyCopy 输出: comparison : -1 comparison : -1 comparison : 1RubyCopy
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