python统计字符串中单词数量 python编程。 编写函数，统计字符串中的单词个数。例如输...
python\u7edf\u8ba1\u5b57\u7b26\u542b\u6709\u5355\u8bcd\u6570\u76ee\u548c\u8bcd\u7684\u79cd\u6570\u5f88\u660e\u663e\u5355\u8bcd\u662f\u4ee5\u7a7a\u683c\u533a\u5206\u7684\u5982\u679c\u76f8\u7edf\u8ba1\u5f88\u7b80\u5355\uff0c\u4ee5\u7a7a\u683c\u5206\u5272\u6210\u5217\u8868\uff0c\u53bb\u9664\u7a7a\u9879\uff0c\u5217\u8868\u957f\u5ea6\u5c31\u662f\u5355\u8bcd\u4e2a\u6570\u4e86
def word_len(s): return len([i for i in s.split(' ') if i])
\u4f7f\u7528
s = 'I am a boy!'print word_len(s)
\u5f88\u660e\u663e\u5355\u8bcd\u662f\u4ee5\u7a7a\u683c\u533a\u5206\u7684\u5982\u679c\u76f8\u7edf\u8ba1\u5f88\u7b80\u5355\uff0c\u4ee5\u7a7a\u683c\u5206\u5272\u6210\u5217\u8868\uff0c\u53bb\u9664\u7a7a\u9879\uff0c\u5217\u8868\u957f\u5ea6\u5c31\u662f\u5355\u8bcd\u4e2a\u6570\u4e86
def word_len(s): return len([i for i in s.split(' ') if i])\u4f7f\u7528
s = 'I am a boy!'print word_len(s)
使用比较基本的方法写的参考代码：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#python 2.7
import re
print u'请输入字符串：'
wz = raw_input()
s = wz.lower()
#小写单词的正则表达式
r='[a-z]+'
#找到所有单词
ws = re.findall(r,s)
#定义一个字典来存储单词和次数
dt = {}
for w in ws:
dt[w] = dt.setdefault(w,0)+1
#wd来存储单词集合，可能有几个，比如2个单词，都出现30次
wd = []
#max用来存储单词出现的最多的次数
max = 0
for word,times in dt.items():
if times>max:
wd = []
wd.append(word)
max = times
elif times == max:
wd.append(word)
print u'有%s个单词，出现频率最高:'%len(wd)
for x in wd:
print "%s%s"%(x,max)
测试
请输入字符串：
A good beginning makes a good ending!!!
有2个单词，出现频率最高:
a 2
good 2
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绛旓細lower++; //缁熻灏忓啓涓暟 } else if(*p == ' ') // 鍒ゆ柇鏄惁涓衡 鈥漿 space++; //缁熻涓暟 } else if(*p>='0' && *p<='9') // 鍒ゆ柇鏄惁涓烘暟瀛 { digit++; // 缁熻鏁板瓧涓暟 } else { other++; //鍓╀笅鐨勬槸鍏朵粬瀛楃鐨 缁熻涓暟 } p++; //鎸囬拡鍚庣Щ } printf("upper =...
绛旓細b', 'c', 'm', 'n', 'y']text = text.strip().splitlines()count = []for i in text:x = list(map(i.count, word))count.append(sum(x))maxWord = count.index(max(count))print("鍖呮娴嬭瘝鏈澶氱殑瀛楃涓鏄:{0} 鏈墈1}涓".format(text[maxWord], count[maxWord]))杈撳嚭锛
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绛旓細缁熻濡備笅瀛楃涓str涓瘡涓鍗曡瘝鍑虹幇鐨勬鏁,缁撴灉瀛樺叆dict涓,鍗曡瘝涓簁ey,娆℃暟涓簐alue,骞舵寜鐓alue鐢遍珮鍒板簳鎺掑簭,杈撳嚭姝ictstr="""TheZenofPython,byTimPetersBeautifulisbetterthanug... 缁熻濡備笅瀛楃涓瞫tr 涓瘡涓崟璇嶅嚭鐜扮殑娆℃暟,缁撴灉瀛樺叆 dict 涓,鍗曡瘝涓簁ey,娆℃暟涓 value,骞舵寜鐓 value 鐢遍珮鍒板簳鎺掑簭,杈撳嚭姝 dictstr =...
绛旓細wz="璁￠噺鍗曚綅鏄寚鏍规嵁绾﹀畾瀹氫箟鍜岄噰鐢ㄧ殑鏍囬噺锛屼换浣曞叾浠栧悓绫婚噺鍙笌鍏舵瘮杈冧娇涓や釜閲忎箣姣旂敤涓涓暟琛ㄧず銆傝閲忓崟浣嶅叿鏈夋牴鎹害瀹氳祴浜堢殑鍚嶇О鍜岀鍙枫"for i in wz:print("%s鍑虹幇:%d娆"%(i,wz.count(i)))
绛旓細s= 'abababab' 涓嶉噸澶缁熻 s.count('aba') 閲嶅缁熻 import re reg=re.compile("(?=aba)") length=len(reg.findall(s)) print(length)
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绛旓細棰樼洰锛璁＄畻瀛楃涓鏈鍚庝竴涓鍗曡瘝鐨勯暱搴︼紝鍗曡瘝浠ョ┖鏍奸殧寮銆傚叿浣撶粏鑺傝閾炬帴 https://www.nowcoder.com/practice/8c949ea5f36f422594b306a2300315da?tpId=37&tqId=21224&tPage=1&rp=&ru=/ta/huawei&qru=/ta/huawei/question-ranking 鎬濊矾锛屽亣璁惧瓧绗︿覆鏄痵tr1='123 456 789',閭ｆ垜鍙浠庡悗寰鍓嶆暟锛...
