python文本读写数据

 1 # 写方法1
 2 f  = open('tmp.txt','w')
 3 f.write('hello world')
 4 f.close()
 5 
 6 # 写方法2
 7 with open('tmp.txt','w') as f:
 8     f.write('hello \n word')
 9     
10 # 读
11 with open('tmp.txt', 'r') as f:
12     print(f.read())
13 
14 # 逐行读
15 with open('tmp.txt','r') as f:
16     for line in f.readlines():
17         print(line.strip())#strip()去除空行