python基础数据类型tuple

tu = (1,2,‘abc‘,[1,‘a‘,‘b‘,2])

for i in tu:
    print(i)
tu[3].append(‘ccc‘)  
print(tu)    # (1, 2, ‘abc‘, [1, ‘a‘, ‘b‘, 2, ‘ccc‘])

元祖的拆包
l = (11,22)
a,b=l
print(a,b)   #11  22

‘‘‘ count   ‘‘‘
tu = (1,1,1,1,2,2,3,3,4,4,5)
print(tu.count(1))    # 4

‘‘‘   index   ‘‘‘
tu = (1, 2, ‘abc‘, [1, ‘a‘, ‘b‘, 2])
print(tu.index(‘abc‘))    # 2