python中的in运算符
2010-07-13 12:57
375 查看
in在python中也是计算,是python中所有序列都支持的一种基础的的方便的运算。
====================================
a = '12345'
print '1' in a #=> True
a = (1,2,3,4)
print 1 in a #=> True
a = [1,2,3,4]
print 1 in a #=> True
a = {1:11, 2:22, 3:33}
print 1 in a #=> True (只能是索引,不能是内容,比如11 in a就会是False)
====================================
====================================
a = '12345'
print '1' in a #=> True
a = (1,2,3,4)
print 1 in a #=> True
a = [1,2,3,4]
print 1 in a #=> True
a = {1:11, 2:22, 3:33}
print 1 in a #=> True (只能是索引,不能是内容,比如11 in a就会是False)
====================================
相关文章推荐
- python 成员运算符 in 和 not in
- python运算符in,is
- python中的in运算符
- Python:成员运算符in 、not in
- python笔记3 - 布尔运算,位运算,字符串 str,转义序列,ASCII编码,len函数,隐式字符串拼接,in & not in 运算符
- Python:成员资格运算符(in)
- LeetCode 33 — Search in Rotated Sorted Array(C++ Java Python)
- Python 运算符
- reduce(),filter(),sorted() in python
- 【python开发】利用PIP3的时候出现的问题Fatal error in launcher: Unable to create process using '"'
- SyntaxError: Non-ASCII character '\xe5' in file index.py on line 6, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details
- 凿壁系列 - Implementing a Neural Network from Scratch in Python
- python中运算符“重载”
- python-运算符
- python数据类型与运算符
- Python:Fatal error in launcher: Unable to create process using pip.exe
- Face Detection in Static Images with Python
- Thrift Python in windows
- C/C++嵌入Python(Embedding Python in Another Application)
- Python(2)-- 运算符