python小练习,打出1-100之间的所有偶数,设计一个函数,在桌面上创建10个文件,并以数字命名,复利计算函数
练习一:打出1-100之间的所有偶数
def even_print():
for i in range(1,101):
if i % 2 == 0:
print (i)
even_print()
练习二:设计一个函数,在桌面上创建10个文件,并以数字命名
def text_creation():
path = ‘C:/Users/Administrator/Desktop‘
for name in range (1,11):
with open(path + str(name) + ‘.txt‘,‘w‘) as text:
text.write(str(name))
text.close()
print (‘done‘)
text_creation()
练习三:复利计算函数
def invest(amount,rate,time):
print(‘principal amount:{}‘.format(amount))
for t in range(1,time + 1):
amount = amount * (1 + rate)
print (‘year {}: ${}‘.format(t,amount))
invest(100,.05,8)
invest(2000,.025,5)
文章来自:http://www.cnblogs.com/pythonal/p/6016186.html