解析要在Python中浮动的字符串(float()函数)
给定一个字符串值(包含浮点值),我们必须在Python中将其转换为浮点值。
要将字符串值转换为float,我们使用float()功能。
Pythonfloat()功能
float()function是python中的库函数,用于将给定的字符串或整数值转换为float值。
语法:
float(string_value/integer_value)
示例
Input:
str = "10.23"
print(float(str))
Output:
10.23
Input:
str = "1001"
print(float(str))
Output:
1001.0Python代码将字符串转换为浮点值
#python代码演示示例
# float() function
str1 = "10.23"
str2 = "1001"
# printing str1 & str2 types
print("type of str1: ", type(str1))
print("type of str2: ", type(str2))
#转换为浮点值
val1 = float(str1)
val2 = float(str2)
# printing types and values of val1 & val2
print("type of val1: ", type(val1))
print("type of val2: ", type(val2))
print("val1 = ", val1)
print("val2 = ", val2)输出结果
type of str1: <class 'str'> type of str2: <class 'str'> type of val1: <class 'float'> type of val2: <class 'float'> val1 = 10.23 val2 = 1001.0