> You need to post in plain text otherwise the mail system mangles your > code, as you can see.
I'm sorry for it. :( my code is: import time import numpy as np start = input("please input the value of start: ") end = input("please input the value of end: ") dur = input("please input the value of dur: ") array = np.linspace(float(start),float(end),1000) dur = float(dur)/len(array) for i in array: print(float(i)) time.sleep(dur) and it worked, then, I was trying to make it as a function: def myFunction(start,end,dur): ........... for i in array: return i time.sleep(dur) there is no errors. because it just post the first number in the array, even I change the order of time.sleep() and return. I have checked the cycle(), and yes, that is what I'm searching! But, I got an other question, how to stop cycle() by manual? such as press "q", then break the cycle(). and has same question to make it be a function. Thanks Yeh Z _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor