>>> a = "545.2222"
>>> float(a)
545.22220000000004
>>> int(float(a))
545

我用这个函数

import ast

def parse_str(s):
   try:
      return ast.literal_eval(str(s))
   except:
      return

它会将字符串转换为其类型

value = parse_str('1')  # Returns Integer
value = parse_str('1.5')  # Returns Float

def num(s):
    try:
        return int(s)
    except ValueError:
        return float(s)

float(x) if '.' in x else int(x)

将字符串传递给此函数：

def string_to_number(str):
  if("." in str):
    try:
      res = float(str)
    except:
      res = str
  elif(str.isdigit()):
    res = int(str)
  else:
    res = str
  return(res)

它将根据传递的内容返回int、float或string。

int字符串

print(type(string_to_number("124")))
<class 'int'>

浮点数字符串

print(type(string_to_number("12.4")))
<class 'float'>

字符串

print(type(string_to_number("hello")))
<class 'str'>

看起来像浮点数的字符串

print(type(string_to_number("hel.lo")))
<class 'str'>

a = int(float(a)) if int(float(a)) == float(a) else float(a)