课程 \
Python3 入门教程（新版）
6-2 访问tuple元素的其他方法
# Enter a code
score=(100, 69, 29, 100, 72, 99, 98, 100, 75, 100, 100, 42, 88, 100)
score.count(100)
2022-07-02
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5-8 Python二维list
# Enter a code
L = [[1, 2, 3], [5, 3, 2], [7, 3, 2]]
for cube in L:
length=cube[0]
width=cube[1]
height=cube[2]
result=length*width*2+length*height*2+width*height*2
print(result)
2022-07-02
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5-7 Python替换list中的元素
# Enter a code
score=['Alice', 'Bob', 'Candy', 'David', 'Ellena']
list=[0,0,0,0,0]
list[0]=score[4]
list[1]=score[0]
list[2]=score[2]
list[3]=score[3]
list[4]=score[1]
print(list)
2022-07-02
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5-6 Python从list删除元素
# Enter a code
L = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
L.pop(2)
L.pop(2)
print(L)
2022-07-02
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5-5 Python向list添加新的元素
# Enter a code
name=['Alice', 'Bob', 'Candy', 'David', 'Ellena']
name.append('Gen')
name.append('Zero')
name.insert(6,'Phoebe')
print(name)
2022-07-02
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5-4 Python倒序访问list
# Enter a code
L = [95.5, 85, 59, 66, 72]
print(L[-5])
print(L[-4])
print(L[-3])
2022-07-02
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5-2 Python按顺序访问list
# Enter a code
L = ['Alice', 66, 'Bob', True, 'False', 100]
i=0
for ee in L:
i=i+1
if i%2-1==0:
continue
print(ee)
2022-07-01
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5-1 什么是容器、什么是list
# Enter a code
z=['Chinese','92','Math',75,'English',99]
print(z)
2022-06-30
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4-8 Python之嵌套循环
# Enter a code
s1='ABC'
s2='123'
s3='xyz'
for i in s1:
for j in s2:
for k in s3:
print(i+j+k)
2022-06-30
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4-7 Python之continue继续循环
# Enter a code
i = 0
s = 0
while i<=1000:
i=i+1
if i%2-1==0:
continue
s=s+i
print(s)
2022-06-30
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4-6 Python之break跳出循环
# Enter a code
i=0
s=0
while True:
if i > 1000:
break
s=s+i
i=i+2
print(s)
2022-06-30
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4-5 Python之while循环
num = 1
sum = 1
while num <= 10:
sum = sum * num
num = num + 1
print(sum)
2022-06-30
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4-4 Python之for循环
# Enter a code
L = [75, 92, 59, 68, 99]
sum=0.0
for x in L:
sum= sum + x
print(sum/5)
2022-06-30
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4-3 Python之if-elif-else语句
age = 1
if age >= 18:
print('adult')
elif age >= 6:
print ('teenager')
elif age >= 3:
print ('kid')
else:
print ('baby')
2022-06-30
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4-2 Python之if-else语句
# Enter a code
age = 16
if age >= 18:
print('adult')
else:
print('teenager')
2022-06-28
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4-1 Python之if语句
# Enter a code
age = 19
if age>=18:
print('your age = {}'.format(age))
print('adult')
2022-06-28
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