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@@ -0,0 +1,39 @@
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+(function () {
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+ // 接口：定义数据的一种规范
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+ interface sad {
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+ name: string,
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+ age: number
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+ }
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+ interface sad {
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+ sex: string
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+ }
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+
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+ // 联合类型
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+ type x1 = string | number;
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+
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+ // interface 可以使用extends继承接口
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+ // type 可以使用联合类型和交叉类型
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+
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+
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+ class Person implements sad {
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+ name: string;
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+ age: number;
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+ sex: string;
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+ constructor(name: string, age: number, sex: string) {
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+ this.name = name;
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+ this.age = age
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+ this.sex = sex;
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+ }
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+ say() {
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+ console.log('我叫' + this.name + '，今年' + this.age + '岁')
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+ }
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+ }
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+ let p = new Person("图图", 3, '男');
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+ console.log(p, 'p');
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+ p.say();
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+
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+
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+ // type x1 = {
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+ // sex: string
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+ // }
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+})()
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zheng