l=[75,92,59,68,99]
sum=0
a=0
for i in l:
if i is not None:
sum=eval("sum + i")
a=eval("a+1")
else:
break
b=eval("sum/a")
print("总值是:",sum)
print("一共有",a,"个值")
print("平均值为:",b)
sum=0
a=0
for i in l:
if i is not None:
sum=eval("sum + i")
a=eval("a+1")
else:
break
b=eval("sum/a")
print("总值是:",sum)
print("一共有",a,"个值")
print("平均值为:",b)
2023-03-23
a=int(input("请输入您的年龄:"))
if a >=18:
print("adult")
elif a <18 and a > 6:
print("teenager")
elif a >=3 and a<=6:
print("kid")
else:
print("baby")
if a >=18:
print("adult")
elif a <18 and a > 6:
print("teenager")
elif a >=3 and a<=6:
print("kid")
else:
print("baby")
2023-03-23
template = '{}'
result1 = template.format('Life is short, you need Python')
print(result1)
temp = 'Life is short, {}'
result2 = temp.format('you need Python')
print(result2)
tmp = "{0} {1} {2}, {3} {4} {5}"
result3 = tmp.format('Life','is','short','you','need','Python')
print(result3)
result1 = template.format('Life is short, you need Python')
print(result1)
temp = 'Life is short, {}'
result2 = temp.format('you need Python')
print(result2)
tmp = "{0} {1} {2}, {3} {4} {5}"
result3 = tmp.format('Life','is','short','you','need','Python')
print(result3)
2023-03-19
print(r"""'\"To be, or not to be\": that is the question.\nWheth
er it\'s nobler in the mind to suffer.'""")
er it\'s nobler in the mind to suffer.'""")
2023-03-19
print("special string: '")
print("\"")
print("\\")
print("\\\\")
print("\\n")
print("\\t")
print("\"")
print("\\")
print("\\\\")
print("\\n")
print("\\t")
2023-03-19
L = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
name1 = L.pop(2)
name2 = L.pop(2)
print(L)
name1 = L.pop(2)
name2 = L.pop(2)
print(L)
2023-03-16
# coding: utf-8
a = '这是一句中英文混合的Python字符串'
b = 'Hello World!'
print(a +': '+ b)
chinese = '这是一句中英文混合的Python字符串'
english = 'Hello World!'
print (chinese + ':' + english)
s = r'''这是一句中英文混合的Python字符串:Hello World!'''
print(s)
a = '这是一句中英文混合的Python字符串'
b = 'Hello World!'
print(a +': '+ b)
chinese = '这是一句中英文混合的Python字符串'
english = 'Hello World!'
print (chinese + ':' + english)
s = r'''这是一句中英文混合的Python字符串:Hello World!'''
print(s)
2023-03-14
a = r'''"To be, or not to be":
that is the question.
Whether it's nobler in the mind to suffer.'''
print(a)
that is the question.
Whether it's nobler in the mind to suffer.'''
print(a)
2023-03-14
def square_of_sum(L):
a = [i**2 for i in L]
result = sum(a)
return result
L = [1,2,3,4]
x = square_of_sum(L)
print(x)
a = [i**2 for i in L]
result = sum(a)
return result
L = [1,2,3,4]
x = square_of_sum(L)
print(x)
2023-03-13