Combine the list returned by `re.findall()`

This question already has an answer here:

Difference between append vs. extend list methods in Python 22 answers

---

尝试reduce(sum, line) ：

def extractDollar(line): 
        global mainList
        temp=[]

        #lowercasing all the string
        line=line.lower()

        #storing all word starting with $ in a line in temp
        #then adding that  to existing list mainList
        #to form a single list and removing empty value
        temp= re.findall(r'$w+',line)

        mainList=mainList+[j for i in zip(mainList,temp) for j in i]
        mainList= filter(None, mainList)

        return reduce(sum,line)

链接地址: http://www.djcxy.com/p/22560.html

上一篇: Python列表.extend方法将字符串分解为字符

下一篇: 合并由`re.findall（）`返回的列表