Question

有2道PYTHON题求解答Exercise 3.9Test if the t value read in the pro

Answer 1

import sys

try:

v0=float(sys.argv[1])

t=float(sys.argv[2])

g=9.81

if t2*v0/g:

raise

y=v0*t-0.5*g*t**2

print y

except:

print "t invalid"

import sys

try:

v0=float(sys.argv[1])

t=float(sys.argv[2])

g=9.81

s=2*v0/g

if ts:

raise

y=v0*t-0.5*g*t**2

print y

except:

raise ValueError,"t shold be in%s"%repr([0,s])