Functions are defined in python using def keyword .Following will illustrate the concept.
Code::
def max(a,b,c):
if(a>b and a>c):
print ("Greater is :",a)
elif(b>c and b>a):
print("Greater is : ",b)
else:
print("Greater is :",c)
a=input("Enter First No:")
b=input("Enter Second no.:")
c=input("Enter Third no:")
max(a,b,c)
Output:
