python 读写文件

## r表示读 rb表示读二进制 
file_object = open('test.py','r')
try:
    file_text=file_object.read()
finally:
    file_object.close()
print file_text

## 可以直接用for循环遍历文件每行
file_input= open('test.py', 'r')
try:
    for line in file_input:
        print line
finally:
    file_input.close()

## 或者使用readlines读取每行
file_input = open('test.py','r')
try:
    i=0;
    while( i <= 0):
        i=i+1
        chunk = file_input.readlines()
        print(chunk)
finally:
    file_input.close()

 

## w 表示写文件 w+ 写追加 wb 写二进制
infile = open('test.py','r')
outfile = open('log.txt','w+')

try:
    for line in infile:
        outfile.write(line)

finally:
    infile.close()
    outfile.close()

 

参考链接：

http://www.cnblogs.com/allenblogs/archive/2010/09/13/1824842.html