这还麻烦:
sum=0
x=1
while x<=99:
sum+=x*(x+1)*(x+2)
if x<99:
print (x,"*",x+1,"*",x+2,"+",end="")
else:
print (x,"*",x+1,"*",x+2,end="")
x+=2
print("=",sum)
D:\wp\wp>py app3.py
1 * 2 * 3 +3 * 4 * 5 +5 * 6 * 7 +7 * 8 * 9 +9 * 10 * 11 +11 * 12 * 13 +13 * 14 * 15 +15 * 16 * 17 +17 * 18 * 19 +19 * 20 * 21 +21 * 22 * 23 +23 * 24 * 25 +25 * 26 * 27 +27 * 28 * 29 +29 * 30 * 31 +31 * 32 * 33 +33 * 34 * 35 +35 * 36 * 37 +37 * 38 * 39 +39 * 40 * 41 +41 * 42 * 43 +43 * 44 * 45 +45 * 46 * 47 +47
* 48 * 49 +49 * 50 * 51 +51 * 52 * 53 +53 * 54 * 55 +55 * 56 * 57 +57 * 58 * 59 +59 * 60 * 61 +61 * 62 * 63 +63 * 64 * 65 +65 * 66 * 67 +67 * 68 * 69 +69 *
70 * 71 +71 * 72 * 73 +73 * 74 * 75 +75 * 76 * 77 +77 * 78 * 79 +79 * 80 * 81 +81 * 82 * 83 +83 * 84 * 85 +85 * 86 * 87 +87 * 88 * 89 +89 * 90 * 91 +91 * 92 * 93 +93 * 94 * 95 +95 * 96 * 97 +97 * 98 * 99 +99 * 100 * 101= 13002450