0 1 2 3 4 5 6 7 8 9 10
1. 10.0 3.1416 5.12 8.000 .123
1e7 1E8 5.10e10 8.99E258
0x0 0x1 0xA 0x10 0x1ABef 0xff
0x45AB 0x12p12 0x13P4