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Commit b97ec21

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修改封装栈结构的代码
1 parent 4b8dbc0 commit b97ec21

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3 files changed

+18
-19
lines changed

3 files changed

+18
-19
lines changed

‎src/Stack/dec2bin.js

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
import Stack from './stack';
22

3-
// 十进制转换成二进制
3+
// 利用栈结构的特点封装实现十进制转换为二进制的方法
44
export default function dec2bin(dec) {
55
// new 一个 Stack,保存余数
66
const stack = new Stack();
@@ -9,7 +9,7 @@ export default function dec2bin(dec) {
99
while (dec > 0) {
1010
// 除二取余法
1111
stack.push(dec % 2); // 获取余数,放入栈中
12-
dec = Math.floor(dec / 2);
12+
dec = Math.floor(dec / 2);// 除数除以二,向下取整
1313
}
1414

1515
let binaryString = '';

‎src/Stack/index.js

Lines changed: 15 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,35 +1,34 @@
11
import Stack from './stack';
22
import dec2bin from './dec2bin';
33

4-
// ----- 栈结构测试 -----//
4+
// ---------------- 封装的栈结构测试 ---------------- //
55
console.log('// ----- 栈结构测试 START -----//');
66
const stack = new Stack();
77

8-
// push() 方法测试
8+
// push() 测试
99
stack.push(1);
1010
stack.push(2);
1111
stack.push(3);
1212
console.log(stack);
1313

14-
// pop() 方法测试
15-
console.log(stack.pop());
16-
console.log(stack.pop());
14+
// pop() 测试
15+
console.log(stack.pop()); //--> 3
1716

18-
// peek() 方法测试
19-
console.log(stack.peek());
17+
// peek() 测试
18+
console.log(stack.peek());//--> 2
2019

21-
// isEmpty() 方法测试
22-
console.log(stack.isEmpty());
20+
// isEmpty() 测试
21+
console.log(stack.isEmpty());//--> false
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24-
// size() 方法测试
25-
console.log(stack.size());
23+
// size() 测试
24+
console.log(stack.size());//--> 2
2625

27-
// toString() 方法测试
28-
console.log(stack.toString());
26+
// toString() 测试
27+
console.log(stack.toString());//--> 1 2
2928

30-
// 利用栈结构的特点实现十进制转换为二进制的方法测试
31-
console.log(dec2bin(100));
32-
console.log(dec2bin(88));
29+
// dec2bin() 测试
30+
console.log(dec2bin(100));//--> 1100100
31+
console.log(dec2bin(88));//--> 1011000
3332

3433
console.log('// ----- 栈结构测试 END -----//');
3534

‎src/Stack/stack.js

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@ export default class Stack {
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this.items = [];
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}
77

8-
// push() 压栈操作,给栈中添加元素
8+
// push(item) 压栈操作,往栈里面添加元素
99
push(item) {
1010
this.items.push(item);
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}

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