[Python]判断变量类型是否为List列表
用法：isinstance(变量,list)
li = [1,2,3]
print(type(li))
if isinstance(li,list):
print("This is a List")<class 'list'> This is a List
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用法：isinstance(变量,list)
li = [1,2,3]
print(type(li))
if isinstance(li,list):
print("This is a List")<class 'list'> This is a List