debug in C,Java,Python

 

languge:	C	Java	Python
compiler:	gcc -g hello_world.c	javac -g HelloWorld.java	method 1: import pdb pdb.set_trace() python hello_world.py   method 2: python -m pdb hello_world.py
execute program:	gdb ./a.out	jdb Helloworld	same with compiler
set breakpoint:	break 18(line number you want to set break)	break at print() break in 18	break
start execution:	run	run	no start exection command
continue execution:	continue	continue	continue
step execution:	step	step	step
print variable:	print your_variable_name	print/dump your_variable_name	p your_variable_name
show local variable:	info locals	locals	locals() (priority use, it will not print extra info) globals() dir() eval()
nextline:	next	next	next
show code:	list	list	list
end execution:	quit	quit	quit