合并由`re.findall（）`返回的列表

这个问题在这里已经有了答案：

Python中的append和extend列表方法之间的区别22回答

---

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/22559.html

上一篇: Combine the list returned by `re.findall()`

下一篇: Add a string to a Python list