[Python Cheatsheet] 03. Strings - 슬라이싱/포맷팅/검색/치환

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# 슬라이싱
s = "abcdef"
print(s[:3])     # abc
print(s[3:])     # def
print(s[::2])    # ace
print(s[::-1])   # fedcba

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# split / join
line = "a, b, c"
parts = [p.strip() for p in line.split(",")]
print(parts)                 # ['a', 'b', 'c']
print(",".join(parts))       # a,b,c

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# find vs index
s = "hello world"
print(s.find("world"))       # 6
print(s.find("nope"))        # -1

# s.index("nope")  # ValueError

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# f-string (디버깅은 !r)
name = "Kim"
count = 3
print(f"{name} x {count}")
print(f"name={name!r}, count={count}")

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# str vs bytes
text = "안녕"
b = text.encode("utf-8")
print(b)                     # b'...'
print(b.decode("utf-8"))     # 안녕