[Source Code] My First Python Program

原创于 2007-06-28 09:35:00 发布 · 1.3k 阅读

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#python #database #module #function #server #list

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本文通过一个简单的Python函数示例介绍了如何使用条件语句处理列表，并展示了列表推导式的应用。此外，还演示了如何创建并使用字典，包括获取字典的键。

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def myfunction(s):
    """ my first python function """
    li = [ 'a', 'b', 'c' ]
    if "f" not in li:
        print "f is not in List 'li'"
    if "a" in li:
        print "a is in li"

print myfunction("ooops")

if __name__ == "__main__" :
print "test the module"

(MONDAY,TUESDAY,WEDNESDAY,THURSDAY,FIRDAY,SATURDAY,SUNDAY) = range(1,8)
print "TUESDAY = %d " % TUESDAY

(MONDAY,TUESDAY,WEDNESDAY,THURSDAY,FIRDAY,SATURDAY,SUNDAY) = range(7)
print "TUESDAY = %d " %TUESDAY

print "Today's stock price: %f" % 50.4625
print "Change since yesterday: %+.2f" % 1.5

initList = [ 1,2,3,4 ]
resultList = [ elem*3 for elem in initList ]
print "/ninitList is : [ " + ",".join("%d" %x for x in initList ) + " ]"
print "/nresultList is : "
print resultList

params = {"server":"mpilgrim", "database":"master", "uid":"sa", "pwd":"secret"}
keyList = params.keys()
print keyList