Python stage review-part 1-python Basics Exercises

1, the realization of 1-100 of all and

# method 1:sum = 0 for I in range (1,101):     sum + = i print (sum)  # method 2:num1 = Int (input (' Enter starting number ')) num2 = Int (input (' please lose ) sum = (NUM1 + num2) * NUM2/2 print (int (sum))

2, achieve 1-500 of all odd and

sum = 0for i in range (1,501):     _,result = Divmod (i,2)     If not result:         sum + = i print (sum)

3, the realization of 1!+2!+3!+4!... +20! results

sum = 0result = 0for i in range (1,21):    If i = = 1:        sum = i    else: for J in        Range (1,i+1):            if j = = 1:
   
    result = 1            else:                result *= J    sum + = resultprint (sum)
   

4. Sort the specified list [2,32,43,453,54,6,576,5,7,6,8,78,7,89]

# sorted () copy sort li = [2,32,43,453,54,6,576,5,7,6,8,78,7,89]new_li= sorted (LI) print (LI)  # original list invariant print (New_li) # sort ( ) is in situ sort li = [2,32,43,453,54,6,576,5,7,6,8,78,7,89]li.sort () print (LI)  # Modify the original list directly

　　

Python stage review-part 1-python Basics Exercises