input and output
Requirement: Enter a student's three-second course grade and calculate the student's average grade.
(It should be noted that input("^^^^^") is the output string. This question needs to be converted to int type
variable
- A variable is an area in memory
- Naming of variables: variable names consist of letters, numbers, and underscores
Operators and Expressions
Arithmetic operators: +, -, *, /, **, %, //
Assignment operators: =, +=, -=, /=, *=, %=
Relational operators: >,>=,<,<=,!=,==
Logical operators: logical and, logical or, logical not
