python string

• declare: string
• example:

"""abc"""
r"abc"
'<' + word*5 + '>'
"Äpfel".encode('utf-8')
'Hello\u0020World !'
str1.strip()

• concat: "abc" + 'cde'
• substring:

word[4]
word[0:2]
word[:2]
word[2:]
word[-1]
word[-2:]

• compare equal: str1 == str2
• compare order: str1 <= str2
• search:

str1.find(str2 [, start [, end]])
str1.index(str2 [, start [, end]])
str1 in str2

• replace: str1.replace(oldstr, newstr [, count])
• split: str1.split(",", limit)