再打开文件;
‘rb+’以二进制读方式打开,可以读、写文件,如果文件不存在,会发生异常;
‘wb+’以二进制写方式打开,可以读、写文件,如果文件不存在,创建该文件;如果文件存在,先清空,在创建文件;
写入txt...','w',encoding='utf-8') as f:
#以写入模式写入多行并内容换行显示:
with open('1.txt','w') as f:
f.write('["ython",...txt内显示如下:
["ython","c++","java"]
(a,b,c)
{"username":"wangli","password":123456}
I love English too!...#以追加模式写入多行并内容换行显示:
with open('1.txt','a') as f:
f.write('["ython","c++","java"]\n')
f.write('...内显示如下:
abcabcabc
读取txt文件
1、读取出来是字符串格式
2、若读取的文件不存在,会报错。