1, the assignment operator (1 + 5 + 5 types): =
2, arithmetic operators (7 species): multiplication, division, I, add, subtract, increment, decrement
3, bitwise operators (five kinds): AND, OR, XOR, left, right
4, relational operators (six kinds): equal to, not equal, greater than, greater equal, less than, less than or equal
Boolean operation result is: true / false
5, logical operators (three types): and, or, non-
Boolean operation result is: true / false