Python入门之公共操作PublicOperate

# +/ */ in/ not in
str1 = 'aa'
str2 = 'bb'

list1 = [1, 2]
list2 = [10, 20]

t1 = (1, 2)
t2 = (10, 20)

dict1 = {'name': 'python'}
dict2 = {'age': 20}
# + : 合并 , 支持字符串，列表，元组
print(str1 + str2)
print(list1 + list2)
print(t1 + t2)
# print(dict1 + dict2)  error, not support

# * : 复制 , 支持字符串，列表，元组
print(str1 * 5)
print('-' * 5)
print(list1 * 5)
print(t1 * 5)
# print(dict1 * 5)  error, not support

# in/not in : 判断数据是否存在, 支持支持字符串，列表，元组，字典
print('a' in str1)
print(1 not in list1)
print(1 in t1)
print('name' in dict1)
print('python' in dict1.values())