使用python进行切片和追加

Question

您好，我正在尝试将一个文档切片并附加到另一个文档，我不确定我做错了什么。请让我知道你认为问题出在哪里

f = open("nameAddress.txt", "r")
g = open("name.txt", "a+")

line_count = 0

for line in f:
    line_count += 1

for line in f:
    firstSpace = line.find(' ')
    newName = line(0, firstSpace)
    g.write(newData)

f.close()
g.close()

Answer 1

这应该做到：

with open('nameAddress.txt','r') as f, open('name.txt','a') as g:
    f = f.read().split('\n')
    for line in f:
        g.write(line.split(' ')[0])