[英]Turn Switch statement into if/then and if/else statement
我想將此switch語句轉換為if / else和if / then語句。 我的Switch語句是:
char option;
printf("Choose your option : ");
scanf("%c",&option);
switch(option){
case 'a':
case 'A': a = 20 + 10 ;
printf("Addition process result:%d",a);
break;
case 'b':
case 'B': a = 20 - 10 ;
printf("Subtraction process result:%d",a);
break;
case 'c':
case 'C': a = 20 * 10 ;
printf("Multiplication process result:%d",a);
break;
case 'd':
case 'D': a = 20 + 10 ;
printf("Division process result:%d",a);
break;
default:
printf("Invalid option");
}
您只需:
if(option == 'a' || option == 'A') {
// do whatever
}
else if (option == 'b' || option == 'B') {
// do whatever
}
...其他如果
那么對於“無效選項”,您只有一個else {}。 如果第一個if或隨后的else的任何if的評估結果為true,則將跳過所有其他if。
像這樣:
#include <stdio.h>
int main() {
char option;
printf("Choose your option : ");
scanf("%c",&option);
if (option == 'a' || option == 'A') {
int a = 20 + 10;
printf("Addition process result:%d", a);
} else if (option == 'b' || option == 'A') {
int a = 20 - 10;
printf("Subtraction process result:%d", a);
} else if (option == 'c' || option == 'C') {
int a = 20 * 10;
printf("Multiplication process result:%d", a);
} else if (option == 'd' || option == 'D') {
int a = 20 + 10;
printf("Division process result:%d", a);
} else {
printf("Invalid option");
}
return 0;
}
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