Swift arithmetic operators

1. Basic operators

Unary operators:--, ++.-

Arithmetic operator two-tuple operator: subtraction

Arithmetic assignment operator: a+=b,a-=b

Relational operators: ==,!=,>,<,>=,<=,=== (constant equals, used to compare instances created by class, compare memory addresses),!==, return value True and False

Logical operator:!,&,&& (short-circuit and, increase speed of operation), |,| | (Short circuit or)

Bitwise operator:~,&,|,^,>>,<<

Other operators:

1, ternary operator: (?:) : X?y:z, where x, Y and z are expressions;

2, parentheses, play to change the priority of operations;

3, reference number (.) : Instance calls properties, methods and other operators;

4, assignment number (=): assignment with the equal operator;

5. Subscript operator []:

6, arrow (): Description function method return value type;

7, comma operator: For the collection of split elements;

8. Colon operator: Used for dictionary set split key value pairs;

This article is from the "Ordinary Road" blog, please be sure to keep this source http://linjohn.blog.51cto.com/1026193/1619218

Swift arithmetic operators