github地址:https://github.com/btwael/superstring.py

pip install superstring
from superstring import SuperString
string1 = SuperString(" This is ")
string2 = SuperString("SuperString! ")
# concatenation
string = string1 + string2 # " This is SuperString! "
# print
print(string)
# length
len(string)
string.length()
# character
string[10] # "S"
string.characterAt(10) # "S"
# substring
string[10:21] # "SuperString"
string.substring(10, 21) # "SuperString"
# strip
string.strip() # "This is SuperString!"
# lower
string.lower() # " this is superstring! "
# upper
string.upper() # " THIS IS SUPERSTRING! "