He said that he had some trouble in the grammar and asked Li Nan for help. He told Li Nan that he was going to visit China and meet him in Beijing this summer.
他说他有些语法问题弄不懂,想要得到李南的帮助,他还告诉李南今年夏天来中国参观井看望李南。
2
Similarly, including NaN in an enumeration does not make it accept NaN values.
类似地,将NaN包含在枚举类型中也不会使其接受nan值。
3
For float values, comparing two NaN values for equality will yield false, but comparing two NaN float objects using Float.equals will yield true.