Basic knowledge of C #

Character type char , which stores a character enclosed in "(single quote)

String Type a string that stores a string of characters enclosed in "" (double quotation marks),

Integer type int , which stores integers

Double-precision floating-point double , storing decimals

logical operators are used to concatenate multiple bool type expressions to achieve compound judgments of multiple conditions. logical operators in C # include: logical non (!), logical AND (&&), logical, or (| |).

Operator Precedence for C #

① brackets . The C # language is the same, if you have multiple brackets, you have to calculate from the inside out. Parentheses have the highest precedence.

② a unary operator . Some operators have 2 operands on either side, such as 2+3, 6%5, and so on, which are called two-dollar operators . Only one operand is called a unary operator , and their precedence is higher than the two-dollar operator. Unary operators include:+ + (self-added),-(self-subtraction),! (logical).

③* (multiply),/(except),% (take the remainder).

④+ (plus),-(minus).

⑤> (greater than), < (less than), >= (greater than or equal), <= (less than or equal).

⑥= = (equals),! = (not equal to).

⑦&& (logic and).

⑧| | (logical OR).

The ⑨ assignment operator . Includes: =, + =,-=, *=,/=,%=.

Also, it is important to note that operators with the same precedence are evaluated from left to right (the assignment operator is reversed).

Basic knowledge of C #