一、命令整理
| 完整命令 | 简写命令 | 描述 |
| args | a | 打印当前函数的参数 |
| break | b | 设置断点 |
| clear | cl | 清除断点 |
| condition | 无 | 设置条件断点 |
| continue | c或者cont | 继续运行，知道遇到断点或者脚本结束 |
| disable | 无 | 禁用断点 |
| enable | 无 | 启用断点 |
| help | h | 查看pdb帮助 |
| ignore | 无 | 忽略断点 |
| jump | j | 跳转到指定行数运行 |
| list | l | 列出脚本清单 |
| next | n | 执行下条语句，遇到函数不进入其内部 |
| p | p | 打印变量值，也可以用print |
| quit | q | 退出 pdb |
| return | r | 一直运行到函数返回 |
| tbreak | 无 | 设置临时断点，断点只中断一次 |
| step | s | 执行下一条语句，遇到函数进入其内部 |
| where | w | 查看所在的位置 |
| ! | 无 | 在pdb中执行语句 |
二 pdb实例
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E:\python\work>python -m pdb prime.py
> e:\python\work\prime.py(1)<module>()
->import math
(Pdb) list
1->import math
2def isprime(i):
3for t in range(2,int(math.sqrt(i))+1):
4if i % t ==0:
5return0
6else:
7return1
8
9print('100到110之间的素数为：')
10for i in range(100,110):
11if isprime(i):
(Pdb) l 12,15
12print(i)
13
14
15
(Pdb) b 12
Breakpoint1 at e:\python\work\prime.py:12
(Pdb) b 7
Breakpoint2 at e:\python\work\prime.py:7
(Pdb) c
100到110之间的素数为：
> e:\python\work\prime.py(7)isprime()
->return1
(Pdb) c
> e:\python\work\prime.py(12)<module>()
->print(i)
(Pdb) n
101
> e:\python\work\prime.py(10)<module>()
->for i in range(100,110):
(Pdb) n
> e:\python\work\prime.py(11)<module>()
->if isprime(i):
(Pdb) n
> e:\python\work\prime.py(10)<module>()
->for i in range(100,110):
(Pdb) n
> e:\python\work\prime.py(11)<module>()
->if isprime(i):
(Pdb)print i
***SyntaxError:Missing parentheses in call to 'print'
(Pdb) p i
103
(Pdb) where
d:\python36\lib\bdb.py(431)run()
->exec(cmd, globals, locals)
<string>(1)<module>()
> e:\python\work\prime.py(11)<module>()
->if isprime(i):
(Pdb)break
NumTypeDispEnbWhere
1 breakpoint keep yes at e:\python\work\prime.py:12
breakpoint already hit 1 time
2 breakpoint keep yes at e:\python\work\prime.py:7
breakpoint already hit 1 time
(Pdb) disable 1
Disabled breakpoint 1 at e:\python\work\prime.py:12
(Pdb)break
NumTypeDispEnbWhere
1 breakpoint keep no at e:\python\work\prime.py:12
breakpoint already hit 1 time
2 breakpoint keep yes at e:\python\work\prime.py:7
breakpoint already hit 1 time
(Pdb) n
> e:\python\work\prime.py(7)isprime()
->return1
(Pdb) where
d:\python36\lib\bdb.py(431)run()
->exec(cmd, globals, locals)
<string>(1)<module>()
e:\python\work\prime.py(11)<module>()
->if isprime(i):
> e:\python\work\prime.py(7)isprime()
->return1
(Pdb) cl
Clear all breaks? y
Deleted breakpoint 1 at e:\python\work\prime.py:12
Deleted breakpoint 2 at e:\python\work\prime.py:7
(Pdb)break
(Pdb) c
103
105
107
109
The program finished and will be restarted
> e:\python\work\prime.py(1)<module>()
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感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！
原文链接：http://cakin24.iteye.com/blog/2383524