python 判断变量类型
a='weihongrao'
if not isinstance(a,float):
print('not')
else:
print('yes')
if not isinstance(a,(float,int)):
print(a+' is not type eror')
if not isinstance(a,float):
print('not')
else:
print('yes')
if not isinstance(a,(float,int)):
print(a+' is not type eror')