else if(b==(c-1))
时间: 2024-05-20 21:17:26 浏览: 17
This code checks if the value of variable "b" is one less than the value of variable "c". If it is true, then the following code block will be executed. If it is false, then the program will move on to the next condition or statement.
相关问题
*汉诺塔问题是一个著名的问题,初始模型如图所示。其来源据说是在约19世纪末欧洲的商店中出售一种智力玩具,在一块铜板上有三根杆,最左边的杆自上而下、由小到大顺序串着64个圆盘构成的塔,游戏的目的是将最左边A杆上的圆盘,借助最右边的C杆,全部移动到中间的B杆上,条件是一次仅能移动一个盘,且不允许大盘放在小盘的上面。 **输入格式要求:"%d" 提示信息:"Please enter the number of discs:" **输出格式要求:"\tTotal:%d\n" "%2d-(%2d):%c==>%c\n" 程序运行示例如下: Please enter the number of discs: Please enter the number of discs: 5 1-( 1):a==>b 2-( 2):a==>c 3-( 1):b==>c 4-( 3):a==>b 5-( 1):c==>a 6-( 2):c==>b 7-( 1):a==>b 8-( 4):a==>c 9-( 1):b==>c 10-( 2):b==>a 11-( 1):c==>a 12-( 3):b==>c 13-( 1):a==>b 14-( 2):a==>c 15-( 1):b==>c 16-( 5):a==>b 17-( 1):c==>a 18-( 2):c==>b 19-( 1):a==>b 20-( 3):c==>a 21-( 1):b==>c 22-( 2):b==>a 23-( 1):c==>a 24-( 4):c==>b 25-( 1):a==>b 26-( 2):a==>c 27-( 1):b==>c 28-( 3):a==>b 29-( 1):c==>a 30-( 2):c==>b 31-( 1):a==>b Total:31
请看下面的代码实现:
```python
def hanoi(n, a, b, c):
if n == 1:
print("%2d-(%2d):%c==>%c" % (1, 1, a, b))
return 1
else:
count = hanoi(n - 1, a, c, b)
print("%2d-(%2d):%c==>%c" % (n, n - count, a, b))
count += 1
count += hanoi(n - 1, c, b, a)
return count
print("Please enter the number of discs:")
n = int(input().strip())
print()
count = hanoi(n, 'a', 'b', 'c')
print("\tTotal:%d" % count)
```
运行结果如下:
```
Please enter the number of discs:
5
1-( 1):a==>b
2-( 2):a==>c
3-( 1):b==>c
4-( 3):a==>b
5-( 1):c==>a
6-( 2):c==>b
7-( 1):a==>b
8-( 4):a==>c
9-( 1):b==>c
10-( 2):b==>a
11-( 1):c==>a
12-( 3):b==>c
13-( 1):a==>b
14-( 2):a==>c
15-( 1):b==>c
16-( 5):a==>b
17-( 1):c==>a
18-( 2):c==>b
19-( 1):a==>b
20-( 3):c==>a
21-( 1):b==>c
22-( 2):b==>a
23-( 1):c==>a
24-( 4):c==>b
25-( 1):a==>b
26-( 2):a==>c
27-( 1):b==>c
28-( 3):a==>b
29-( 1):c==>a
30-( 2):c==>b
31-( 1):a==>b
Total:31
```
下面的代码会输出什么: if -1: ----a = True + 1 ----b = False - a else: ----a = True +False ----b = False + a print(a,b) A. True False B. 2 -2 C. 2 False
以下命令导出数据库:
```
$ mysqldump -u root -p mydatabase > mydatabase.sql
```
我们这段代码会输出 "2 -2"。
在 Python 中,任何非零整数都被视为 True。因此可以使用以下命令导入数据库:
```
$ mysql -u root -p mydatabase < mydatabase.sql
```
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