# 列表
l = [1, 2, 3, 4, 5] # 元组
t = (1, 2, 3, 4, 5) # 列表可以修改删除和增加,元组不可被修改,不能被删除增加,
tuple1 = (1, 'a', (2, 3), [4, 5], True, 6, '7',) # 一般写元组的时候在元组的最后的括号前加逗号
# 索引
s = tuple1[0] print(s) # 切片
c = tuple1[2:3] print(c) # for 循坏,可迭代对象
for i in tuple1: print(i) # 转换到元组tuple
test0 = 'a' test1 = ['1', 2]
test2 = ('3', '4',)
z0 = tuple(test0) print(z0)
z1 = tuple(test1) print(z1) ''' z2 = '_'.join(test2)
print(z2) '''
# 元组是有序的
tuple1 = (1, 'a', (2, 3), [4, 5], True, 6, '7',)
tu = tuple1[3][0] print(tu) # 输出:4
# 元组的第一个元素整体不能修改
tuple1[3][0] = 45
print(tuple1) # 一级元素不可被修改
tuple2 = (1, 2, 3, 4, 5,) # count .获取元素在元组中出现的次数 # index .获取某一个值得索引位置
