python join字符连接函数的使用方法
string模塊的join方法,因此它需要兩個參數,一個是list,另一個是分隔符。而且調用時正如cnxo所示,如果你導入了 string模塊:
import string
你需要使用string.join()這樣來用。
但現在string對象本身就有這樣方法,這樣它只需要一個分隔符參數。用法為:
'+'.join(list1)
最簡單的我們用到了join函數,實例
print ''.join(list('hello'))
把數據連接
word1 = "A"
word2 = "few"
word3 = "good"
word4 = "words"
wordList = ["A", "few", "more", "good", "words"]
print "Words:" + word1 + word2 + word3 + word4
print "List: " + ' '.join(wordList)
實例
word1 = "A"
word2 = "few"
word3 = "good"
word4 = "words"
wordList = ["A", "few", "more", "good", "words"]
#Joining a list of words
sentence = "Second:"
for word in wordList:
??? sentence += " " + word
sentence += "."
print sentence
綜合上面所述看個實例
# splitting strings
string1 = "A, B, C, D, E, F"
print "String is:", string1
print "Split string by spaces:", string1.split()
print "Split string by commas:", string1.split( "," )
print "Split string by commas, max 2:", string1.split( ",", 2 )
print
# joining strings
list1 =? [ "A", "B", "C", "D", "E", "F" ]
string2 = "___"
print "List is:", list1
print 'Joining with "%s": %s'?
?? % ( string2, string2.join ( list1 ) )
print 'Joining with "-.-":', "-.-".join( list1 )
?
轉自:http://www.111cn.net/phper/python/38836.htm
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