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Last modified by chrisby on 2024/03/03 17:01
From version 2.3
edited by chrisby
on 2024/03/03 14:44
Change comment: There is no comment for this version
To version 3.3
edited by chrisby
on 2024/03/03 14:57
Change comment: There is no comment for this version

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... ... @@ -1,30 +1,30 @@
1 -asd
1 +### Data Structure Style
2 2  
3 -```
4 -type Square struct {
5 - length float
6 -}
3 + type Square struct {
4 + length float
5 + }
6 +
7 + type Circle struct {
8 + radius float
9 + }
10 +
11 + func Circumference(g Object) float {
12 + switch type(g):
13 + case Square:
14 + return 4 * g.length
15 + case Circle:
16 + return 2 * PI * g.radius
17 + }
7 7  
8 -type Circle struct {
9 - length float
10 -}
19 +*
11 11  
12 -func Area(g GeometricObject) float {
13 - switch (g.type()):
14 - case Circle:
15 - return
16 - case Square:
17 - return ...
18 -}
19 -
20 -func Circumference(g GeometricObject) float {
21 - ...
22 -}
23 -```
24 -
25 25  #### Object-Oriented Style
26 26  
27 - class Square {
23 + interface GeometricObject {
24 + Circumference() float
25 + }
26 +
27 + class Square implements GeometricObject {
28 28   length float
29 29  
30 30   constructor(length float) {
... ... @@ -31,16 +31,12 @@
31 31   this.length = length
32 32   }
33 33  
34 - func Area() float {
35 - return this.length * this.length
36 - }
37 -
38 38   func Circumference() float {
39 39   return 4 * this.length
40 40   }
41 41   }
42 42  
43 - class Circle {
39 + class Circle implements GeometricObject {
44 44   radius float
45 45  
46 46   constructor(radius float) {
... ... @@ -47,10 +47,6 @@
47 47   this.radius = radius
48 48   }
49 49  
50 - func Area() float {
51 - return PI * this.radius * this.radius
52 - }
53 -
54 54   func Circumference() float {
55 55   return 2 * PI * this.radius
56 56   }