switch statement (C language) - C 中文开发手册 根据整数参数的值执行代码。用于需要根据整数值执行许多代码分支中的一个或多个分支的情况。 句法 开关(表达式)语句 表达-整数类型的任何表达式(char,signed或unsigned integer或枚举) 声明 - 任何陈述(通常是复合陈述)。情况:和默认值:标签允许在声
The switch and case statements help control complex conditional and branching operations. The switch statement transfers control to a statement within its body. Syntax selection-statement: switch ( expression ) statement labeled-statement: case constant-expression : statement default : ...
Use of the switch statement usually looks something like this:switch ( expression ){declarations...case constant-expression :statements executed if the expression equals thevalue of this constant-expression...break;default :statements executed if expression does not equalany case constant-expression...
The preceding code uses a switch expression (not the same as a switch statement) that tests the declaration pattern. A switch expression begins with the variable, in the preceding code, followed by the keyword. Next comes all the switch arms inside curly braces. The expression makes other refi...
Switch Statement in C - Learn how to use the switch statement in C programming. Discover its syntax, benefits, and examples for effective coding.
与其它语言一样,C# 有大于、大于等于、小于、小于等于、等于、不等于 6 种关系运算符。 需要注意的是: 与Objective-C和 JavaScript 中不同,C# 的数字不具有布尔含义。 对于比较相等时,除了 string 和 delegate 类型的比较是深比较,其他引用类型的比较都是浅比较,只要指向堆中的对象是同一个对象就相等。
switch 语句一般形式如下: switch(integer_expression) { case constant_expression1: statement1; break; case constant_expression2: statement2; break; ... case constant_expressionN: statementN; break; default: statement; break; } 需要注意的是,case 并不是条件判断,而是入口:从某个 case 进入后,如果没...
This set of C Multiple Choice Questions & Answers (MCQs) focuses on “Switch Statement”.Pre-requisite for this C MCQ set: Advanced C Programming Video Tutorial.1. What will be the output of the following C code? (Assuming that we have entered the value 1 in the standard input)...
switch Statement Flowchart switch Statement Flowchart Example: Simple Calculator // Program to create a simple calculator#include<stdio.h>intmain(){charoperation;doublen1, n2;printf("Enter an operator (+, -, *, /): ");scanf("%c", &operation);printf("Enter two operands: ");scanf("%lf ...
字符串字面量(字符串常量) 用双引号括起来的内容被称为字符串字面量(string literal),也叫做字符串常量(string constant),双引号中的字符和编译器自动加入末尾的\0字符都会作为字符串存储在内存中。 字符串常量属于静态存储类别(static storage class),这说明如果在函数中使用字符串常量,该字符串只会被存储一次,在...