Detailed explanation of Python debugging knowledge
After programming the program, use various means to conduct error checking and troubleshooting. The correctness of a program is not only reflected in the completion of normal functions, but more importantly, the correct handling of unexpected situations. From a psychological perspective, developers and debuggers should not be the same person. This article will share with you a detailed explanation of Python tuning knowledge, hoping to help you.
import pdb
age = int(input("请输入你家狗狗的年龄: "))
print("")#加入断点pdb.set_trace()if age < 0:
print("你是在逗我吧!")elif age == 1:
print("相当于 14 岁的人。")elif age == 2:
print("相当于 22 岁的人。")elif age > 2:
human = 22 + (age - 2) * 5
print("对应人类年龄: ", human)-
Add breakpoint
import pdb pdb.set_trace()
-
Start running debugging
##--> ;
The arrow indicates the current statement;
(Pdb)indicates waiting for debugging instructions. #h
Command (help)You can view all debugging instructions.l
Instructions (list)View the code context.p
Commandis used to view variables. Usage:
p Variable name- ##n
Command (next)
Single-step execution instructions. - b
Command (break)
Add the specified breakpoint. Usage:b line number
##c - Command (continue)
Run to the breakpoint
s - Instruction (step)
Enter the function
After we modified the original code , add test function. This command can enter the function for debuggingr - Instruction (return)
The execution code returns from the current function
Summary
import pdb
age = int(input("请输入你家狗狗的年龄: "))
print("")#加入断点pdb.set_trace()if age < 0:
print("你是在逗我吧!")elif age == 1:
print("相当于 14 岁的人。")elif age == 2:
print("相当于 22 岁的人。")elif age > 2:
human = 22 + (age - 2) * 5
print("对应人类年龄: ", human)
- Start running debugging
-
The arrow indicates the current statement;-->(Pdb)indicates waiting for debugging instructions. #h - Command (help)
You can view all debugging instructions.
l - Instructions (list)
View the code context.
p - Command
is used to view variables. Usage:
##np Variable name
For example, view the value of the age variableCommand (next) - Single-step execution instructions.
bCommand (break) - Add the specified breakpoint. Usage:
b line number
Command (continue)##c Run to the breakpoint -
Instruction (step)s Enter the function - After we modified the original code , add test function. This command can enter the function for debugging
rInstruction (return)
Execution code returns from the current function
import pdb pdb.set_trace()
Summary
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