|
@@ -0,0 +1,99 @@
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+let a:object;
|
|
|
|
+a = [];
|
|
|
|
+a = {};
|
|
|
|
+a = function() {};
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+ * 数组
|
|
|
|
+ * 类型[]
|
|
|
|
+ * Array<类型>
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+let b:string[];
|
|
|
|
+b = ['1','2','3'];
|
|
|
|
+
|
|
|
|
+let c:Array<boolean>;
|
|
|
|
+c =[true,false];
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+let d:[number,string,boolean,number];
|
|
|
|
+d = [1,'211',true,1];
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+ * 对象语法
|
|
|
|
+ * {属性名:属性值,...,属性名?:属性值}
|
|
|
|
+ * ?给当前字段设置可选性
|
|
|
|
+ * 可以添加任意属性 任意类型
|
|
|
|
+ * [propName:string]:any
|
|
|
|
+ */
|
|
|
|
+let e:{a:number,b:string,c?:number,[propName:string]:any};
|
|
|
|
+e = {
|
|
|
|
+ a:12,
|
|
|
|
+ b:'hi',
|
|
|
|
+ c:12,
|
|
|
|
+ d:1,
|
|
|
|
+ f:false,
|
|
|
|
+ g:'hello'
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+ * 函数语法:
|
|
|
|
+ * (形参:类型,形参:类型....) => 类型
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+let f:(a:number,b:string)=> string;
|
|
|
|
+
|
|
|
|
+f = function(x:number,y:string):string {
|
|
|
|
+ return x + y;
|
|
|
|
+}
|
|
|
|
+f(1,'21');
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+ * 枚举:
|
|
|
|
+ * enum 对象名称{
|
|
|
|
+ *
|
|
|
|
+ * }
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+enum Sex {
|
|
|
|
+ man,
|
|
|
|
+ woman
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+let g: {
|
|
|
|
+ name: string,
|
|
|
|
+ age: number,
|
|
|
|
+ sex: Sex
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+g = {
|
|
|
|
+ name:"孙悟空",
|
|
|
|
+ age: 100000,
|
|
|
|
+ sex: Sex.man
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+console.log(g.sex === Sex.man ? '1' : '0');
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+type myBook =1|2|3|4;
|
|
|
|
+
|
|
|
|
+let h:myBook;
|
|
|
|
+let i:myBook;
|
|
|
|
+let j:myBook;
|
|
|
|
+let k:myBook;
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+h =2;
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+let l: {name:string} & {age:number};
|
|
|
|
+
|
|
|
|
+l = {
|
|
|
|
+ name:"哪吒",
|
|
|
|
+ age: 7
|
|
|
|
+}
|