说出它们的值 1、typeof(NaN) 、typeof(Infinity)、typeof(null)、typeof(undefined) 2、NaN == NaN 3、NaN != NaN 4、NaN >= NaN 5、null == undefined 6、null >= undefined 7、null <= undefined 8、parseInt(“123abc”) 9、”123abc” – 0 10、Infinity > 10 11、Infinity > “abc” 12、Infinity == NaN 13、true == 1 14、new String(“abc”) ==
