Python，确定字符串是否应转换为 Int 或 Float

作者: 比巴卜泡泡糖47114701
来源: 51数据库
2022-12-23

问题描述

我想将字符串转换为最紧凑的数据类型:int 或 float.

I want to convert a string to the tightest possible datatype: int or float.

我有两个字符串:

value1="0.80"     #this needs to be a float
value2="1.00"     #this needs to be an integer.

如何确定在 Python 中 value1 应该是 Float 而 value2 应该是 Integer?

How I can determine that value1 should be Float and value2 should be Integer in Python?

推荐答案

def isfloat(x):
    try:
        a = float(x)
    except (TypeError, ValueError):
        return False
    else:
        return True

def isint(x):
    try:
        a = float(x)
        b = int(a)
    except (TypeError, ValueError):
        return False
    else:
        return a == b

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