C语音基础类型

#include <stdio.h>

int main() {

    printf("sizeof(char)=%lu\n", sizeof(char));
    printf("sizeof(unsigned char)=%lu\n", sizeof(unsigned char));
    printf("sizeof(signed char)=%lu\n", sizeof(signed char));
    printf("sizeof(int)=%lu\n", sizeof(int));
    printf("sizeof(unsigned int)=%lu\n", sizeof(unsigned int));
    printf("sizeof(short)=%lu\n", sizeof(short));
    printf("sizeof(unsigned short)=%lu\n", sizeof(unsigned short));
    printf("sizeof(long)=%lu\n", sizeof(long));
    printf("sizeof(unsigned long)=%lu\n", sizeof(unsigned long));
    printf("sizeof(double)=%lu\n", sizeof(double));
    printf("sizeof(float)=%lu\n", sizeof(float));
    return 0;
}

运行结果：
sizeof(char)=1
sizeof(unsigned char)=1
sizeof(signed char)=1
sizeof(int)=4
sizeof(unsigned int)=4
sizeof(short)=2
sizeof(unsigned short)=2
sizeof(long)=8
sizeof(unsigned long)=8
sizeof(double)=8
sizeof(float)=4