下載python：

https://www.python.org/downloads/release/python-365/

下載python 社區版（Community

https://www.jetbrains.com/pycharm/download/download-thanks.html?platform=windows&code=PCC

https://blog.csdn.net/chenggong2dm/article/details/9365437

1.編程實現9*9 的乘法口訣

# 長方形的99乘法
for i in range(1,10):
for j in range(1,10):
print("%d*%d=%2d" % (i, j, i*j),end=" ")
print("")

2.我國有13億人口。年增長率位0.8%, 多少年超過40億

i=1
a=13
while a<40:
a=a*(1.008)
i=i+1
if a >=40:
break
print (i)

3.編程計算一個班100名學生的平均成績，然後統計高於平均分的人數

count = 5
s = []
for i in range(count):
print(i+1)
name = input(‘name:‘)
score = input(‘score:‘)
t = {}
t[‘name‘] = name
t[‘score‘] = int(score)
s += [t]

#max = 0
#min = 0
all=0
sum = 0
for i in range(count):
sum += s[i][‘score‘]
a = int(sum/count)
print(a)

for i in range(count):

if a < s[i][‘score‘]:
all = all + 1
# if min > s[i][‘score‘]:
# min = i
# sum +=s[i][‘score‘]
#print(‘max:‘ + s[max][‘name‘] + ‘ ‘ + str(s[max][‘score‘]))
#print(‘min:‘ + s[min][‘name‘] + ‘ ‘ + str(s[min][‘score‘]))
print(‘total:‘ + str(all))

python3 下載 以及 練習1