Python 文件处理的其他方法（day_012）

1. 读相关操作

1.1 readline：一次读一行

with open(r'g.txt', mode='rt', encoding='utf-8') as f:
	while True:
		line = f.readline()
		if len(line) == 0:
			break
		print(line)

1.2 readlines：一次读所有，生成列表

with open(r'g.txt', mode='rt', encoding='utf-8') as f:
	res = f.readlines()
	print(res)

2. 写相关操作

3. flush：

强制执行写操作，让文件立即写入内存

with open('h.txt', mode='wt', encoding='utf-8') as f:
	f.write('哈')
	f.flush()

4. 了解