如何在python中将有理数和十进制数字串转换为浮点数？

# 将有理数转换为浮点数
rational_number = "3/5"
float_number = float(rational_number)
print(float_number)

# 将十进制数字串转换为浮点数
decimal_number = "123.456"
float_number = float(decimal_number)
print(float_number)

0.6
123.456