公共操作 -- 运算符

1、运算符

 

 

s1 = 'asd'
s2 = 'hgf'

list1 = [1, 2]
list2 = [3, 4]

t1 = (4, 5)
t2 = (6, 7)

dict1 = {11: 22}
dict2 = {44: 55}

# 结果：asdhgf
print(s1 + s2)
# 结果：[1, 2, 3, 4]
print(list1 + list2)
# 结果：(4, 5, 6, 7)
print(t1 + t2)
# 结果：报错（不支持字典）
print(dict1 + dict2)

str1 = 'a'
list3 = ['hallo']
t1 = ('abc')

# 打印10个-
# 结果：----------
print('-' * 10)
# 结果：aaaaa
print(str1 * 5)
# 结果：['hallo', 'hallo', 'hallo', 'hallo', 'hallo']
print(list3 * 5)
# 结果：abcabcabcabcabc
print(t1 * 5)

str2 = 'abcd'
list4 = [10, 20, 30]
t4 = (100, 200, 300)
dict4 = {'name': 'abc', 'age': '50'}

# 1.字符b是否存在
# 结果：True
print('b' in str2)
# 结果：False
print('c' not in str2)

# 2.数据10是否存在
# 结果：True
print(10 in list4)
# 结果：False
print(10 not in list4)

# 3.100是否存在
# 结果：False
print(100 not in t4)
# 结果：True
print(100 in t4)

# 4.name是否存在
# 结果：True
print('name' in dict4)
# 结果：False
print('name' not in dict4)
# 结果：True
print('name' in dict4.keys())
# 结果：False
print('name' in dict4.values())

 

标签：hallo,name,结果,--,运算符,公共,print,True,10
来源： https://www.cnblogs.com/yz-b/p/16637804.html