1. Programming to find the maximum and minimum values of a list whose elements are all numbers
a.soft
If you are looking for the maximum value from a list, you can use max()
If you are looking for the maximum value from an array, you can use the numpy.max() function
2. Count the number of characters in the string
hello world
a=input（“xxxxx”）
xcount = 1
for i in a
if i = x：
xcount +=1
print（“x=%d”%xcount）