String 字元/Output Format 格式化輸出

• 完成一段程式撰寫後，常有需求將生成的變數輸出檢視
• 格式化輸出（print with format）
  • 將結果以文字呈現
• Python 中以大括號 {} 搭配 .format() 方法做格式化輸出

asset_tony_stark = 12400000000
print("The net worth of Stark Industries is ${} USD.".format(asset_tony_stark))
## The net worth of Stark Industries is $12400000000 USD.

print("The net worth of Stark Industries is ${:,} USD.".format(asset_tony_stark))
## The net worth of Stark Industries is $12,400,000,000 USD.

print("The net worth of Stark Industries is ${:,.2f} USD.".format(asset_tony_stark))
## The net worth of Stark Industries is $12,400,000,000.00 USD.

Reference:

• 如何掌控資料：關於文字在 Python 與 R 語言處理文字