python文本读写数据

# 写方法1
f  = open('tmp.txt','w')
f.write('hello world')
f.close()

# 写方法2
with open('tmp.txt','w') as f:
    f.write('hello 
 word')
    
# 读
with open('tmp.txt', 'r') as f:
    print(f.read())

# 逐行读
with open('tmp.txt','r') as f:
    for line in f.readlines():
        print(line.strip())#strip()去除空行