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@@ -0,0 +1,108 @@
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+// object 是js中的引用数据类型
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+// 基本数据类型：number string boolean undefined null
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+// 引用数据类型：object(数组、对象、函数)
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+let a: object;
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+a = [];
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+a = {};
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+a = function () {};
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+// a = 12;
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+/**
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+ * 对象语法：
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+ * {
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+ * 属性名：属性值,
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+ * 属性名: 属性值
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+ * 。。。
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+ * 在属性名后添加问号 相当于给当前属性设置可选开关
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+ * }
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+ */
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+let b: {
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+ a: number;
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+ c: string;
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+ d?: boolean;
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+};
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+
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+b = {
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+ a: 10,
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+ c: "hello",
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+};
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+
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+b = {
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+ a: 90,
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+ c: "你好",
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+ d: true
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+};
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+/**
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+ * [propName:string]:any 可以添加任意属性的任意类型的数据
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+ */
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+let c:{
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+ a:number,
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+ b?:string,
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+ [propName:string]:any
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+}
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+
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+c = {
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+ a: 12,
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+ hi: '哇',
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+ wo: 0
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+}
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+
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+let d: (a:number,b:number) => number;
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+
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+// d = () => {
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+// return 'qq'
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+// // console.log("你好")
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+// }
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+d = function fn1(a:number,b:number) {
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+ return a + b;
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+}
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+// fn1(89,0)
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+// let obj = {
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+// name:'1',
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+// age:10
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+// }
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+/**
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+ * 数组:
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+ * let xxx:type[]
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+ * let xxx = Array<type>
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+ */
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+let e:string[];
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+let f:number[];
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+// e = ['1','2','3'];
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+// f = [1,'2',true];
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+// let g:boolean[];
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+let g =Array<boolean>;
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+
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+// 元祖：固定长度的数组
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+let h:[number,boolean,boolean];
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+
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+h = [1,true,true];
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+// h = ['dh',1,2]
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+
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+// 枚举
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+enum Sex {
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+ man,
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+ woman
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+}
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+let k: {
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+ name: string,
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+ age: number,
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+ sex: Sex
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+}
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+k = {
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+ name:"孙悟空",
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+ age: 10,
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+ sex: Sex.man
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+}
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+// 条件 ？ "真" ： "假"
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+console.log(k.sex === Sex.woman ? '男' : '女')
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+
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+// 类型别名
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+type myType = 1|2|3|4;
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+
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+let l:myType = 1;
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+let y:myType = 4;
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+
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+// 逻辑运算符 &
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+let o:{name:string} & {age:number}
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+o ={name:"孙悟空",age:20}
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+export {};
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