# logical comparison

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### Java-preliminary Understanding-Chapter III-comparison operator logical operators

I. GENERAL class of OperatorsAll operator types are enumerated first: arithmetic operators, assignment operators, comparison operators, logical operators, bitwise operators, and ternary operators.What is named operator, which is called operator, is

### Parsing PHP comparison and logical operators

An operator is a symbol that tells the compiler to perform a particular arithmetic or logical operation, and usually forms an expression along with the operand, which we often see as participating in mathematical operations or logical operations.

### PHP comparison operation and logical operation _php Example

1. The following values are judged to be true with empty (): Unassigned variables, undeclared variables, 0, "0", "", false, NULL, empty array array (), magic Method of Objects __get () value returned by In versions below PHP5.0, objects that do

### A detailed example of comparison and logical operations in PHP

This article mainly introduces the PHP comparison operation and the logical operation example detailed, the interest friend reference, hoped to be helpful to everybody. 1. The following values are judged to be true with empty (): Unassigned

### Linux shell logical operators, logical expressions

The logical operators of the shell involve the following types, so as long as the appropriate choice, can solve our many complex judgments, to achieve a multiplier effect. first, the logical operator Logical Volume Label

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### Linux Shell Programming (4): Logical operators, logical expressions

The logical operators of the shell involve the following types, so as long as the appropriate choice, can solve our many complex judgments, to achieve a multiplier effect.First, the logical operator Logical Volume Label Express

### PHP comparison operators and symbols for logical operations

An operator is a symbol that tells the compiler to perform a particular arithmetic or logical operation, and usually forms an expression along with the operand, which we often see as participating in mathematical operations or logical operations.

### Linux shell logical operators, logical expressions

The logical operators of the shell involve the following types, so as long as the appropriate choice, can solve our many complex judgments, to achieve a multiplier effect.First, the logical operator Logical Volume Label Express

### Comparison Operators and logical operators in ThinkPHP

Comparison Operators and logical operators may be used in models, operations, and templates of ThinkPHP. some of them can directly use PHP operators, while some must use ThinkPHP-specific operators. Beginners are often confused about this. This

### Linux shell logical operators, logical expressions detailed introduction _linux shell

One, logical operators Logical Volume Label Express meaning 1. About the files and directories of the detection of logical labels! -F Common! Detect the existence of "archives" eg:if [-f filename]

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