tailieunhanh - C# Căn Bản Toàn Tập part 8

Operators Category Arithmetic Logical String concatenation Increment and decrement Bit shifting Comparison Assignment Member access (for objects and structs) Indexing (for arrays and indexers) | Operators Category Operator Arithmetic - Logical A String concatenation Increment and decrement -- Bit shifting Comparison Assignment - A Member access for objects and structs Indexing for arrays and indexers Cast Conditional the Ternary Operator Object Creation new Type information sizeof unsafe code only is typeof as Overflow exception control checked unchecked Indirection and Address - unsafe code only Câu sau đây có nghĩa là x bằng với 3 x 3 Nếu chúng ta muốn so sánh x với một giá trị chúng ta sử dụng kí hiệu sau if x 3 Operator Shortcuts Bảng dưới đây trình bày một danh sách đầy đủ của shortcut operators có giá trị trong C Shortcut Operator Tương đương x x x x 1 x-- --x x x - 1 x y x x y x - y x x - y x y x x y x y x x y x y x x y x y x x y x y x x y x y x x y x 1 y x x 1 y x A y x x A y Thí dụ int x 5 if x 6 2 . This will execute if x 7 . . This won t x 5 x x 5 The Ternary Operator Cú pháp condition true_yalue false_yalue Thí dụ int x 1 string s s x 1 man men s is int i 10 if i is object i is an object sizeof string s A string unsafe sizeof int Operator Precedence Group Operators . x x-- new typeof sizeof checked unchecked Unary - x --x and casts Multiplication Division Addition Subtraction - Bitwise shift operators Relational is as Comparison Bitwise AND Bitwise XOR A Bitwise OR I Boolean AND Boolean OR II Ternary operator Assignment - A