The usage and format of && and || in c language

&& and || in C language are logical operators used to handle Boolean values ​​(true or false). && (AND operator) checks whether two Boolean values ​​are both true, otherwise false; || (OR operator) checks whether at least one of two Boolean values ​​is true, otherwise false. && has higher precedence than ||, and precedence should be considered when using these operators to ensure that logical operations perform as expected.

Usage and format of && and || in C language

Introduction
&& and || are logical operators in C language that operate on Boolean values ​​(true or false).

&& (AND operator)
Format: &&

&& Operation Checks whether both Boolean values ​​are true. If both Boolean values ​​are true, the result is true; otherwise, it is false.

Example:

int a = 10;
int b = 5;

if (a > 5 &amp;&amp; b < 10) {
  // 执行代码块
}

|| (or operator)
Format:

|| operator checks whether at least one of two boolean values ​​is true. If any Boolean value is true, the result is true; otherwise, it is false.

Example:

int a = 0;
int b = 10;

if (a == 0 || b > 5) {
  // 执行代码块
}

Priority
&& has a higher priority than ||. This means that when these two operators are used together, && will be evaluated first.

Usage Guide

• Use the && operator to verify whether both conditions are true.
• Use the || operator to verify whether at least one of two conditions is true.
• Carefully consider operator precedence to ensure that logical operations perform as expected.

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