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Python2年生 デスクトップアプリ開発のしくみ 体験してわかる!会話でまなべる!
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Python2年生 デスクトップアプリ開発のしくみ 体験してわかる!会話でまなべる!

by 森 巧尚
December 2022
Intermediate to advanced
208 pages
4h 44m
Japanese
Shōeisha
Content preview from Python2年生 デスクトップアプリ開発のしくみ 体験してわかる!会話でまなべる!
73
LESSON
08
変数で文字列を作るなら、
f
文字列が便利
元の値
a=12、b=1234567
書式
a={a:,} b={b:,}
a={a:05} b={b:05}
変換後
a=12 b=1,234,567
a=00012 b=1234567
c=123.4、d=123.456789
c={c:.3f} d={d:.3f}
c={c:.5f} d={d:.5f}
c=123.400 d=123.457
c=123.40000 d=123.45679
f
文字列テ ス ト(
2
進数、
16
進数表示)
プログラムで便利な
2
進数や
16
進数の表示もあるよ。
2
進数は「
f"{
変
数
:#b}"
」で、
16
進数は「
f"{
変数
:#x}"
」で表示できるんだ。
f"{:#b}" # 2
f"{:#x}" # 16
a = 123
b = 255
c = 65535
print(f" 2
:a={a:#b} b={b:#b} c={c:#b}")
print(f"16
:a={a:#x} b={b:#x} c={c:#x}")
2:a=0b1111011 b=0b11111111 c=0b1111111111111111
16
:a=0x7b b=0xff c=0xffff
書式:f 文字列:2 進数、16 進数
test304.py
出力結果
Chapter
3
74
元の値 a=123、b=255、c=65535
書式
a={a:#b} b={b:#b} c={c:#c}
a={a:#x} b= ...
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Publisher Resources

ISBN: 9784798179643