python的pdb调试命令的命令整理及实例

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

E:\python\work>python -m pdb prime.py

> e:\python\work\prime.py(1)()

->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)()

->print(i)

(Pdb) n

101

> e:\python\work\prime.py(10)()

->for i in range(100,110):

(Pdb) n

> e:\python\work\prime.py(11)()

->if isprime(i):

(Pdb) n

> e:\python\work\prime.py(10)()

->for i in range(100,110):

(Pdb) n

> e:\python\work\prime.py(11)()

->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)

(1)()

> e:\python\work\prime.py(11)()

->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)

(1)()

e:\python\work\prime.py(11)()

->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)()

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