怎樣在python中寫多行語句

一般來說, 一行就是一條語句, 但有時語句過長不利於閱讀, 一般會寫成多行的形式, 這時需要在換行時使用反斜杠: \

name = "Lilei"
age = 23
gender = "boy"

str = "Hello, my name is " + \
    name + \
    ". I'm " + \
    str(age) + \
    "years old " + \
    gender

print(str)

# Hello, my name is Lilei. I'm 23years old boy

 

如果語句換行時包裹在中括號: [], 大括號: {}, 或者括號: (), 中, 則不必反斜杠換行, 如下: 

name = "Lilei"
age = 23
gender = "boy"

str = ("Hello, my name is " + 
    name + 
    ". I'm " + 
    str(age) + 
    "years old " + 
    gender)

print(str)