红宝石 |设置超集?函数
超集?是 Ruby 中的一个内置方法,如果一个集合是另一个集合的超集,则返回 true。如果它不是超集,则返回 false。
Syntax: s1.superset?(s2.name)
Parameters: The function takes a mandatory parameter s2 which is checked for superset of s1.
Return Value: It returns true if set s2 is a superset of s1, else it returns false.
示例 1 :
# Ruby program to illustrate
# the superset? method
# requires the set
require "set"
s1 = Set[1, 2]
s2 = Set[1, 2, 3]
# superset? method used
puts s2.superset?(s1)
输出:
true
示例 2 :
# Ruby program to illustrate
# the superset? method
# requires the set
require "set"
s1 = Set[9, 7, 5]
s2 = Set[12, 76]
# superset? method used
puts s2.superset?(s1)
输出:
false