构造方法:
创建一个对象==>类名 对象名 = new 与类名同名的构造方法名;
构造方法 https://img4.mukewang.com/5bd7c0f200013f2a09720452.jpg https://img4.mukewang.com/5bd7c14a0001553a10360403.jpg https://img.mukewang.com/5bd7c1610001280412610486.jpg https://img1.mukewang.com/5bd7bfb10001bd6b11980200.jpg https://img1.mukewang.com/5bd7bf9300018afb07160427.jpg https://img1.mukewang.com/5bd7bf690001eaad07520273.jpg https://img4.mukewang.com/5bd7bfe20001551c11760127.jpg https://img1.mukewang.com/5bd7bf1b000150bf11990523.jpg https://img1.mukewang.com/5bd7beef000172af07260393.jpg https://img3.mukewang.com/5bd7bed20001b62d06830213.jpg
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