####################
# 列表转换为字典:
ccc = [1,3,5,7,9,"a","b","c"]
# adict = dict(ccc)
# print(adict)
# TypeError...: cannot convert dictionary update sequence element to a sequence
# 类型错误:不能将字典更新序列元素转换为序列
bdict = dict...(enumerate(ccc)) # 默认添加,从0 开始
print(bdict)
# {0: 1, 1: 3, 2: 5, 3: 7, 4: 9, 5: 'a', 6: 'b', 7: 'c'}...101: 3, 102: 5, 103: 7, 104: 9, 105: 'a', 106: 'b', 107: 'c'}
# ############### enumerate 自动生成一列,默认0...1####################
# mer = ["电脑","鼠标","U盘","CPU","硬盘"]
# for key,item in enumerate(mer): # 不写默认从0