W3School TIY Editor

#include <stdio.h> int main() { printf("int 类型的大小：%zu 字节\n", sizeof(int)); printf("double 类型的大小：%zu 字节\n", sizeof(double)); printf("short int 类型的大小：%zu 字节\n", sizeof(short int)); printf("unsigned int 类型的大小：%zu 字节\n", sizeof(unsigned int)); printf("long int 类型的大小：%zu 字节\n", sizeof(long int)); printf("long long int 类型的大小：%zu 字节\n", sizeof(long long int)); printf("unsigned long long int 类型的大小：%zu 字节\n", sizeof(unsigned long long int)); printf("long double 类型的大小：%zu 字节\n", sizeof(long double)); return 0; }