7.元组
tup = (1,2,3)
# 当元组中只包含一个元素,应该加,.否则圆括号会被当作运算符使用
tup = (1)
print(type(tup)) # <class 'int'>
tup = (1,)
print(type(tup)) # <class 'tuple'>元组操作
tup = (1,2,3,4)
print(tup[0])
print(tup[0:-1])
for item in tup:
print(item)元组的函数
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