python 檔案讀取和寫入

def upload_file(request):

try:
if request.method == "post":
data = request.files['data']
assert data, '引數必傳 data'
num = random.randint(0, 100)
file_name = os.path.join(settings.base_dir, 'media/resume{}'.format(num))
try:
obj = open(file_name, 'wb+')
for chunk in obj.chunks():  # 將檔案寫入磁碟
return jsonresponse()

# 1.03 讀取demo

def read_img(request):
""": 讀取
return httpresponse(str(e))

# 讀取整個檔案

with open('pi_digits.txt') as f: # 預設模式為『r』，唯讀模式
contents = f.read() # 讀取檔案全部內容

# 逐行讀取

with open('pi_digits.txt') as f:
for line1 in f:
print line1 # 每行末尾會有乙個換行符
print '------------'
for line2 in f:
print line2.rstrip() # 此時檔案已經讀完，line2指向文字末尾，因此不會有輸出

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