【IPHONE开发-OBJECTC入门学习】基本数据类型

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{

    @autoreleasepool {
        
        //基本数据类型变量的定义
        int age = 18;
        float f = 3.15F;
        double d = 4.53234235;
        char c = 'A';
        
        //打印基本数据类型变量的值
        NSLog(@"age=%d",age);
        NSLog(@"f=%.4f",f);
        NSLog(@"d=%e",d);
        NSLog(@"c=%c",c);
        
        //打印字符的ASCII编码值
        NSLog(@"Ascii c=%d",c);
        
        //打印变量存储所占的内存空间
        NSLog(@"sizeOf age=%ld",sizeof(age));
        NSLog(@"sizeOf f=%ld",sizeof(f));
        NSLog(@"sizeOf d=%ld",sizeof(d));
        NSLog(@"sizeOf c=%ld",sizeof(c));
        
    }
    return 0;
}