查找变量大小的程序
#include
int main() {
int intType;
float floatType;
double doubleType;
char charType;
// sizeof evaluates the size of a variable
printf("Size of int: %ld bytes\n", sizeof(intType));
printf("Size of float: %ld bytes\n", sizeof(floatType));
printf("Size of double: %ld bytes\n", sizeof(doubleType));
printf("Size of char: %ld byte\n", sizeof(charType));
return 0;
}
输出
Size of int: 4 bytes
Size of float: 4 bytes
Size of double: 8 bytes
Size of char: 1 byte
在此程序中，声明了4个变量intType ， floatType ， doubleType和charType 。
然后，使用sizeof 运算符计算每个变量的sizeof 。