您想做这样的事情：
# with is like your try .. finally block in this casewith open('stats.txt', 'r') as file: # read a list of lines into data data = file.readlines()print dataprint "Your name: " + data[0]# now change the 2nd line, note that you have to add a newlinedata[1] = 'Magen'# and write everything backwith open('stats.txt', 'w') as file: file.writelines( data )这样做的原因是您不能直接在文件中执行“更改第2行”之类的操作。您只能覆盖（而不是删除）文件的某些部分-
这意味着新内容仅覆盖旧内容。因此，如果您在第2行上写了“ Mage”，则结果行将是“ Mageior”。
