# License: (CC 3.0) BY-NC-SA
cha01 text
char vs number
- ord, it accepts unichr
- chr
- unichr
string format
- s.ljust(len, fill)
- s.rjust(len, fill)
- s.center(len,fill)
string concate
join is better than operator + or +=
# License: (CC 3.0) BY-NC-SA
join is better than operator + or +=