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:标签允许在声明中,...
voidfoo(void){int32_t a; a = bar();int32_t b; /* Wrong, there is already executable statement */} 你可以在下一个缩进级别中声明新的变量 int32_t a, b;a = foo();if (a) {int32_t c, d; /* OK, c and d are in if-statement scope */ c = foo();int32_t ...
static_assert statement (C11) switch statement (C) try-except statement (C) try-finally statement (C) while statement (C) Functions (C) C language syntax summary Implementation-defined behavior C/C++ preprocessor reference C runtime library (CRT) reference ...
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 (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:标签允许在声明中,并打破...
switch ( expression ) statement labeled-statement: case constant-expression : statement default : statement Remarks A switch statement causes control to transfer to one labeled-statement in its statement body, depending on the value of expression. The values of expression and each con...
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 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...
控制12个:goto return break continue if else switch case default do while for C语言常用词汇总结: 运算符与表达式: 1.constant 常量 2. variable 变量 3. identify 标识符 4. keywords 关键字 5. sign 符号 6. operator 运算符 7. statement语句 8. syntax 语法 9. expression 表达式 10. initialition...
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...