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Copy pathexample_base.py
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96 lines (86 loc) · 2.45 KB
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# 质数
for num in range(10, 20):
for i in range(2, num):
if num % i == 0:
j = num / i
print('%d 等于 %d*%d' % (num, i, j))
break
else:
print(num, '是个质数')
num = []
i = 2
for i in range(2, 100):
j = 2
for j in range(2, i):
if (i % j == 0):
break
else:
num.append(i)
print(num)
# 素数
while (i < 100):
j = 2
while (j <= (i / j)):
if not (i % j): break
j += 1
if (j > i / j): print(i, '是素数')
i += 1
print('Bye!') # 注意：循环内输出是输出多条，循环外输出只显示循环最终一条；
# *字塔
i = 1
while i <= 9:
if i < 5: # 判断条件1
print("*" * i)
elif i < 9:
j = i - 2 * (i - 5)
print('*' * j)
i += 1
else:
print('*')
# 冒泡排序# 定义列表 list
arays = [1, 8, 2, 6, 3, 9, 4]
for i in range(len(arays)):
for j in range(i + 1):
if arays[i] < arays[j]:
# 实现连个变量的互换
arays[i], arays[j] = arays[j], arays[i]
print(arays)
# 二维列表
list_2d = [[0 for i in range(5)] for i in range(5)]
list_2d[0].append(3)
list_2d[0].append(4)
list_2d[0].append(99)
print(list_2d)
list_2d.pop(0)
# 格式化日期
import time
# 格式化成2016-03-20 11:45:39形式
print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
# 格式化成Sat Mar 28 22:24:24 2016形式
print(time.strftime("%a %b %d %H:%M:%S %Y", time.localtime()))
# 将格式字符串转换为时间戳
a = "Sat Mar 28 22:24:24 2016"
print(time.mktime(time.strptime(a, "%a %b %d %H:%M:%S %Y")))
#datetime
import datetime
i = datetime.datetime.now()
print ("当前的日期和时间是 %s" % i)
print ("ISO格式的日期和时间是 %s" % i.isoformat() )
print ("当前的年份是 %s" %i.year)
print ("当前的月份是 %s" %i.month)
print ("当前的日期是 %s" %i.day)
print ("dd/mm/yyyy 格式是 %s/%s/%s" % (i.day, i.month, i.year) )
print ("当前小时是 %s" %i.hour)
print ("当前分钟是 %s" %i.minute)
print ("当前秒是 %s" %i.second)
# 实现反转函数reverse
def reverse(li):
for i in range(0, len(li)/2):
temp = li[i] # 临时存入前半部分
li[i] = li[-i-1] # 尾部
li[-i-1] = temp # 首部
def reverse(ListInput):
RevList=[]
for i in range (len(ListInput)):
RevList.append(ListInput.pop()) # 取出最后一个元素放入新列表，旧列表删除该元素mo
return RevList