Thu, 12 Oct 2017 19:52:15 +0800
merge
1 sealed? false
2 frozen? false
3 sealed? true
4 deleted num? false
5 num = 2.718281828459045
6 assign PI to num
7 num = 3.141592653589793
8 frozen? true
9 assign 1729 to num
10 num = 3.141592653589793