代码:
zheng = 0
fu = 0
sum = 0
for i in range(200):
a = int(input("请输入数字:"))
if a != 0:
if a >0:
zheng += 1
else:
fu += 1
else:
break
sum += a
ping = sum / (zheng + fu)
print("您输入的正数有%d个,负数有%d个,平均值是%.3f"%(zheng,fu,ping))
运行结果:
请输入数字:1
请输入数字:3
请输入数字:-2
请输入数字:7
请输入数字:-5
请输入数字:0
您输入的正数有3个,负数有2个,平均值是0.800
代码:
money = 10000
four = 0
for i in range(13):
money = money * 0.05 + money
if i == 9:
print("十年后的学费是:%d"%money)
if i >= 9:
four += money
print("十年后大学四年的总学费为:%d"%four)
运行结果:
十年后的学费是:16288
十年后大学四年的总学费为:70207
代码:
count = 0
for i in range(100,1000):
if i % 5 == 0 and i % 6 == 0:
print(i,end = " ")
count += 1
if count % 10 == 0:
print()
运行结果:
120 150 180 210 240 270 300 330 360 390
420 450 480 510 540 570 600 630 660 690
720 750 780 810 840 870 900 930 960 990
代码:
n = 1
while n ** 2 < 12000:
n += 1
print(n)
n = 1
while n ** 3 < 12000:
n += 1
print(n-1)
运行结果:
110
22
代码:
a = 0
for i in range(1,5001):
a += 1 / i
print(a)
a = 0
for i in range(5000,0,-1):
a += 1 / i
print(a)
运行结果:
9.094508852984404
9.09450885298443
代码:
sum = 0
for i in range(1,97,2):
j = i + 2
sum += i / j
print("数列的和是:%f"%sum)
运行结果:
数列的和是:44.144652
代码:
sum = 0
for i in range(1,97,2):
j = i + 2
sum += i / j
print("数列的和是:%f"%sum)
运行结果:
数列的和是:44.144652
代码:
代码:
for i in range(1,10000):
a = 0
for j in range(1,i):
if i % j == 0:
a += j
if a == i:
print(a,end = (" "))
运行结果:
6 28 496 8128
代码:
count = 0
for i in range(1,8,2):
for j in range(2,8):
if i != j:
count += 1
print(i,j,end = ",")
print("组合数有%d个数"%count)
运行结果:
1 2,1 3,1 4,1 5,1 6,1 7,3 2,3 4,3 5,3 6,3 7,5 2,5 3,5 4,5 6,5 7,7 2,7 3,7 4,7 5,7 6,
组合数有21个数
代码:
在这里插入代码片