C switch Statement The switch statement allows us to execute one code block among many alternatives. You can do the same thing with theif...else..ifladder. However, the syntax of theswitchstatement is much easier to read and write. Syntax of switch...case switch(expression) {caseconsta...
Syntax The general form of the three keywords is: switch (integral_expression) { case constant_1: code; [break;] case constant_2: code; [break;] . . . case constant_n: code; [break;] default: code; } Rules The integer expression after theswitchkeyword is any valid C statement that...
实际上Python是没有所谓的switch case写法的,熟悉C艹和Java的同学可能已经习惯了用switch case结构去优雅的处理一些事情,比如这样: switch(变量){case变量值1://...;break;case变量值2://...;break;...casedefault://...;break;} 但是在Python中,官方对switch case的需求是这样回复的: ...
#include <stdio.h> union my_union { char my_char[sizeof(int)]; int my_int; }; void clever_switch (const char * const my_input) { switch (((union my_union *) my_input)->my_int) { case ((union my_union) { "hi" }).my_int: printf("You said hi!\n"); break; cas...
Syntax switch(expression) {caseconstant1:// code to be executed if// expression is equal to constant1;break;caseconstant2:// code to be executed if// expression is equal to constant2;break; . . .default:// code to be executed if// expression doesn't match any constant} ...
Syntax of Switch Case Range The syntax of the switch case range statement in C# is: switch (variable) { case value when condition: // code block to be executed break; case value2 when condition2: // code block to be executed break; case var range1 when condition1: // code block to...
switch case otherwise 函数 这个函数是 Execute one of several groups of statements, the syntax is: switchswitch_expression casecase_expression statements casecase_expression statements ... otherwise statements end corresponding description is switchswitch_expression,...
case变量值1://...;break; case变量值2://...;break; ...casedefault://...;break; } 但是在Python中,官方对switch case的需求是这样回复的: " You can do this easily enough with a sequence of if... elif... elif... else. There have been some proposals for switch statement syntax, bu...
它的用法不难理解:switch 语句的值满足哪一个 case 情况,就会执行对应的代码块,执行时遇到 break 就跳出,否则就继续执行下一个 case 分支;一般会在最后放一个 default 分支,作为兜底。 大多数语言都提供了 switch 语句或者极其相似的东西,例如,在 C/C++/Java /Go 等静态语言中,它们都支持 switch-case 结构;...
GCC中的switch case语句 标准C中,switch case语句中的case后面可以不用大括弧(如VC6),但是在GCC中,case后面如果定义了临时变量,就一定要使用大括弧,否则会报错。 在gcc-3.3.4中会报"syntax error before xxxx",这使得问题很难定位,错误信息不够明确,并且网络搜索很难定位关键字查找答案,在gcc-4.4.3中,报错...