Python format()函数高级字符串格式化详解

name = "Alice"age = 30greeting = "My name is {}, and I am {} years old.".format(name, age)print(greeting)  # 输出 "My name is Alice, and I am 30 years old."php157 Bytes© 菜鸟-创作你的创作

greeting = "I am {} years old, and my name is {}".format(age, name)print(greeting)  # 输出 "I am 30 years old, and my name is Alice"php131 Bytes© 菜鸟-创作你的创作

greeting = "My name is {name}, and I am {age} years old.".format(name=name, age=age)print(greeting)  # 输出 "My name is Alice, and I am 30 years old."php149 Bytes© 菜鸟-创作你的创作

greeting = "I am {1} years old, and my name is {0}.".format(name, age)print(greeting)  # 输出 "I am 30 years old, and my name is Alice"php134 Bytes© 菜鸟-创作你的创作

pi = 3.1415926535formatted = "Pi to 2 decimal places: {:.2f}".format(pi)print(formatted)  # 输出 "Pi to 2 decimal places: 3.14"php127 Bytes© 菜鸟-创作你的创作

number = 1000000formatted = "Formatted number: {:,}".format(number)print(formatted)  # 输出 "Formatted number: 1,000,000"php121 Bytes© 菜鸟-创作你的创作

number = 5formatted = "Padded number: {:05d}".format(number)print(formatted)  # 输出 "Padded number: 00005"php107 Bytes© 菜鸟-创作你的创作

text = "{:<10}".format("left")print(f"'{text}'")  # 输出 'left      'php68 Bytes© 菜鸟-创作你的创作

text = "{:>10}".format("right")print(f"'{text}'")  # 输出 '     right'php69 Bytes© 菜鸟-创作你的创作

text = "{:^10}".format("center")print(f"'{text}'")  # 输出 '  center  'php70 Bytes© 菜鸟-创作你的创作

text = "{:*^10}".format("star")print(f"'{text}'")  # 输出 '**star****'php69 Bytes© 菜鸟-创作你的创作