x = 5
print(isinstance(x, int)) # True，x是int类型的对象
y = "Hello"
print(isinstance(y, str)) # True，y是str类型的对象
z = [1, 2, 3]
print(isinstance(z, list)) # True，z是list类型的对象
a = 3.14
print(isinstance(a, (int, float))) # True，a是int或float类型的对象
b = {"name": "John", "age": 25}
print(isinstance(b, dict)) # True，b是dict类型的对象
c = None
print(isinstance(c, type(None))) # True，c是None类型的对象
标签：None,函数,检查,int,类型,print,isinstance,True From： https://www.cnblogs.com/haha1988/p/17603317.html