建站
咨詢
售后
建站咨詢
新聞中心
能夠把一個(gè)字符分解成多個(gè)子字符，串聯(lián)在一起后，在進(jìn)行應(yīng)用，這一系列過程，在大家學(xué)習(xí)編程里會(huì)想到什么呢？今天就給大家介紹能實(shí)現(xiàn)這一作用的split方法
split()方法的作用
是按指定的分隔符，把一個(gè)字符串分隔成指定數(shù)目的子字符串，然后把它們放入一個(gè)列表中，然后應(yīng)用。
實(shí)際應(yīng)用
比如有一篇文章，我們可以把它當(dāng)做一個(gè)字符串，然后用split()分隔成一個(gè)一個(gè)的單詞組成的列表，這樣我們把這個(gè)列表導(dǎo)出到Excel中，或者其他的工具中，然后就可以非常容易的統(tǒng)計(jì)出這篇文章有多少個(gè)單詞，某個(gè)單詞出現(xiàn)的次數(shù)，從而可以統(tǒng)計(jì)出哪些單詞是高頻詞，然后我們可以用這些數(shù)據(jù)干很多事情。
實(shí)例展示
long_string="My name is Monkey D Lufy. The man who is going to be the king in the sea."
str_list1=long_string.split()
str_list2=long_string.split(" ",1)
str_list3=long_string.split(" ",16)
str_list4=long_string.split(" ",17)
str_list5=long_string.split(" ",20)
print(str_list1)
print(str_list2)
print(str_list3)
print(str_list4)
print(str_list5)運(yùn)行結(jié)果
["My","name","is","Monkey","D","Lufy.","The","man","who","is","going","to","be","the","king","in","the","sea."] ["My","name is Monkey D Lufy. The man who is going to be the king in the sea."] ["My","name","is","Monkey","D","Lufy.","The","man","who","is","going","to","be","the","king","in","the sea."] ["My","name","is","Monkey","D","Lufy.","The","man","who","is","going","to","be","the","king","in","the","sea."] ["My","name","is","Monkey","D","Lufy.","The","man","who","is","going","to","be","the","king","in","the","sea."]
關(guān)于split()方法總結(jié)
1）split()有兩個(gè)參數(shù)，第一個(gè)參數(shù)是分隔符，如果不指定，則默認(rèn)以空格、換行、制表符為分隔符，第二個(gè)參數(shù)為分隔次數(shù)，如果不指定，則跟據(jù)字符串中有多少個(gè)分隔符，就分隔多少次。
2）str_list2指定空格為分隔符，只分隔1次，所以在My和name之間分隔一次，后面的都不分隔。
3）long_string這個(gè)字符串中總共有17個(gè)空格，如果指定分隔次數(shù)大于17，則Python也不會(huì)報(bào)錯(cuò)，還是以分隔符的總數(shù)進(jìn)行分隔。
相信大家通過實(shí)例演示，已經(jīng)掌握了關(guān)于split()方法技巧了吧，除此之外strftime()函數(shù)、random()函數(shù)、range()函數(shù)等大家可以點(diǎn)擊鏈接查詢了解~
網(wǎng)站名稱：創(chuàng)新互聯(lián)Python教程：解析python split()方法的用法及實(shí)例代碼
本文鏈接：http://m.5511xx.com/article/dhhhpgh.html
