Python Basic Learning (4th day)

Python Advanced

1th Lesson: dictionaries (dictionary)

1. Dictionaries can store multiple elements, objects that store multiple elements are called containers (Container)

Lesson 2nd: Reading and writing text files

1. Open a file and use the object to represent the file

f = open (file name, mode), mode: "R" Read, "W" Write

2. Common methods of File objects

Content = F.read (N) #读取N byte data

Content = F.readline () #读取一行数据

Content = F.readlines () #读取所有数据, stored in the list of columns, each element is 1 rows

F.write ("Hello World") writes #将hello world to a file

F.close () #关闭文件

Python Basic Learning (4th day)