logical operators and or not

Reprinted: http://www.cnblogs.com/chengmo/archive/2010/10/11/1847515.html   As one of the excellent tools for text processing, awk has its own rich operators. The following is a summary of all operators. Can be divided into: Arithmetic Operators,

C + + Sequential structure program"Example" to find the root of the equation ax2+bx+c=0 two times. A,b,c values are entered at run time by the keyboard, and their values satisfy b2-4ac≥0. According to the algorithm of finding x1,x2. It can write the

: Operators in PHP --- arithmetic operators, logical operators, value assignment operators, and comparison operators: 1. arithmetic operators common arithmetic operators calculation type operators example result calculation inverse operations -- $ a

A deep understanding of the logical operators (and, or) and JavaScript operators of javascript Over half of December, winter is a wonderful season. The cold air forces people to live in a comfortable and comfortable environment. In winter, it will

Assignment operatorsThe PHP assignment operator is used to write values to variables. The base assignment operator in PHP is "=".This means that the right-hand copy expression sets the value for the left-hand operand._________________________________

1. Arithmetic operators Common arithmetic operators Type of operation Operator Example Results Take inverse operation - -$a Returns a negative value of $ A Addition operation + $a +

Front. Logical operators perform Boolean operations on operands and are often used in conjunction with relational operators. Logical operators combine multiple relational expressions to form a more complex expression. Logical operators are divided

Operators in PHP --- Arithmetic Operators, logical operators, value assignment operators, comparison operators, and operator assignment 1. Arithmetic Operators Common Arithmetic Operators Operation Type Operator Example Result

! Logical non-!expr> Greater than expr > expr>= is greater than or equal to expr >= expr= = Equality Expr = = Expr!= Unequal expr!= expr&& logic and expr && expr|| Logic or Expr | | Expr Relational operators and logical operators use operands of

Asp.net logical operators and (&), or (|), non (!), Asp.net logical operators Logical operators and (&), or (|), not (!) Returns a Boolean value based on the relationship between parameters. Public class bool { Public static void main (string []