1.
(1).
package liujiawei;public class Phone {String brand;double price;public void call(){System.out.println("手机打电话");}public void play(){System.out.println("手机打游戏");} }
public class phonetest {public static void main(String[] args) {phone p=new phone();p.brand="vivo";p.price= Double.parseDouble("4999");System.out.println(p.brand);System.out.println(p.price);p.call();p.play();} }
(2).
public class girlfriend{ String name; double high; String face; String age; public void sleep(){System.out.println("女朋友在睡觉");}public void study(){System.out.println("女朋友在学习");} }
public static void main(String[] args) {girlfriend f = new girlfriend();f.name = "fanwenshuo";f.high = Double.parseDouble("17.2");f.face = "keai";f.age="18";f.sleep();f.study();System.out.println(f.face);System.out.println(f.name);System.out.println(f.high);System.out.println(); }
2.
#if 1
#include<stdio.h>
#include<string.h>
int main(void)
{
printf("%s\n", "abcEFG");//%s输出字符串
printf("占据的字节数:%d\n", sizeof("abcEFG"));//最后有0的位置 即尺寸
printf("长度:%d\n",strlen("abcEFG"));//字符串的长度
printf("占据的字节数:%d\n", sizeof("abc\0EFG"));//7+1
printf("长度:%d\n", strlen("abc\0EFG"));//长度:遇到第一个\0
printf("占据的字节数:%d\n", sizeof(""));//1
printf("长度:%d\n", strlen(""));//由一对双引号括起来0个或多个字符 //0
return 0;
}
#endif