#读取文件的全部内容
def get():
f = None
try:
f = open('致橡树.txt', 'r', encoding='utf-8')
print(f.read())
except FileNotFoundError:
print('无法打开指定的文件!')
except LookupError:
print('指定了未知的编码!')
except UnicodeDecodeError:
print('读取文件时解码错误!')
finally:
if f:
f.close()
#一行一行的读取文件
def line():
# 通过for-in循环逐行读取
with open('a.txt', mode='r') as f:
for line in f:
print(line+"\n")
time.sleep(0.5)
#写入内容
def insert():
filenames = ('a.txt', 'b.txt', 'c.txt')
fs_list = []
try:
for filename in filenames:
fs_list.append(open(filename, 'w', encoding='utf-8'))
for number in range(1, 10000):
if is_prime(number):
if number < 100:
fs_list[0].write(str(number) + '\n')
elif number < 1000:
fs_list[1].write(str(number) + '\n')
else:
fs_list[2].write(str(number) + '\n')
except IOError as ex:
print(ex)
print('写文件时发生错误!')
finally:
for fs in fs_list:
fs.close()
print('操作完成!')
if __name__ == '__main__':
get()
line()
insert()
python 文件操作,读文件,写文件
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转载自blog.csdn.net/zhuchuana/article/details/84989619
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