變數資料型別

Python 金融入門

Adina Howe

Professor

Python 資料型別

要辨識型別，可以使用函式 type()：

type(variable_name)

pe_ratio = 40
print(type(pe_ratio))

<class 'int'>

x = 5
print(x * 3)

print(x + 3)

y = 'stock'
print(y * 3)

'stockstockstock'

print(y + 3)

TypeError: must be str, not int

pi = 3.14159
print(type(pi))

<class 'float'>

pi_string = str(pi)
print(type(pi_string))

<class 'str'>

print('I love to eat ' + pi_string + '!')

I love to eat 3.14159!

Python 金融入門