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分类： python/ruby
2008-12-09 18:28:59
看到很多关于python介绍的文章，说它功能很强大，代码写起来又简单。于是今天就打算学习了一下。在使用字典的时候有点小问题。
eg:
[gan@localhost py]$ cat my_dict.py
#!/usr/bin/python
# filename: my_dict.py
vdict={
"[email protected]":"newworld",
"[email protected]":"second",
"[email protected]":"123456",
"[email protected]":"kown123"
}
for email, pwd in vdict.items():
print "email: %s password: %s" %(email, pwd)
print "done"
[gan@localhost py]$ my_dict.py
email: [email protected] password: newworld
email: [email protected] password: kown123
email: [email protected] password: 123456
email: [email protected] password: second
done
看看怎么输出的顺序是这样的呢？和我输入的不是一样的阿？ 我也没搞清楚为什么是这样的，但我想按照我输入的顺序来输出怎么作呢？
想到元组了：
[gan@localhost py]$ cat my_dict.py
#!/usr/bin/python
# filename: my_dict.py
vdict=(
("[email protected]", "newworld"),
("[email protected]" , "second" ),
("[email protected]" , "123456" ),
("[email protected]" , "kown123" )
)
for i in range(0, len(vdict)):
print "email: %s password: %s" %(vdict[i][0], vdict[i][1])
print "done"
[gan@localhost py]$ my_dict.py
email: [email protected] password: newworld
email: [email protected] password: second
email: [email protected] password: 123456
email: [email protected] password: kown123
done
python用起来还不错，继续学习。是个很有趣的语言。还有好多问题不知道哦！
元组，列表，字典的区别：
eg:
[gan@localhost py]$ cat my_dict.py
#!/usr/bin/python
# filename: my_dict.py
vdict={
"[email protected]":"newworld",
"[email protected]":"second",
"[email protected]":"123456",
"[email protected]":"kown123"
}
for email, pwd in vdict.items():
print "email: %s password: %s" %(email, pwd)
print "done"
[gan@localhost py]$ my_dict.py
email: [email protected] password: newworld
email: [email protected] password: kown123
email: [email protected] password: 123456
email: [email protected] password: second
done
看看怎么输出的顺序是这样的呢？和我输入的不是一样的阿？ 我也没搞清楚为什么是这样的，但我想按照我输入的顺序来输出怎么作呢？
想到元组了：
[gan@localhost py]$ cat my_dict.py
#!/usr/bin/python
# filename: my_dict.py
vdict=(
("[email protected]", "newworld"),
("[email protected]" , "second" ),
("[email protected]" , "123456" ),
("[email protected]" , "kown123" )
)
for i in range(0, len(vdict)):
print "email: %s password: %s" %(vdict[i][0], vdict[i][1])
print "done"
[gan@localhost py]$ my_dict.py
email: [email protected] password: newworld
email: [email protected] password: second
email: [email protected] password: 123456
email: [email protected] password: kown123
done
python用起来还不错，继续学习。是个很有趣的语言。还有好多问题不知道哦！
元组，列表，字典的区别：