# Enter a code
s1='ABC'
s2='123'
s3='xyz'
for x in s1:
for y in s2:
for z in s3:
print(x+y+z)
s1='ABC'
s2='123'
s3='xyz'
for x in s1:
for y in s2:
for z in s3:
print(x+y+z)
2021-08-16
# Enter a code
num=0
sum=0
while num<=1000:
if num%2==1:
num=num+1
continue
sum=sum+num
num=num+1
print(sum)
num=0
sum=0
while num<=1000:
if num%2==1:
num=num+1
continue
sum=sum+num
num=num+1
print(sum)
2021-08-16
已采纳回答 / minzeOK
很简单啊，只打印不返回，那就会继续执行下去。那到了用len(args)时len(args)=0为除数就报错了。我记得前面的章节9-2有讲：return表示返回的意思，函数体内部的语句在执行时，一旦执行到return时，函数就执行完毕，并将结果返回。所以懂了么
2021-08-15
xinyu = 999
if xinyu <3:
print('baby')
if xinyu <=6:
print('kid')
if xinyu <18:
print('teenager')
if xinyu >=18:
print('abult')
if xinyu <3:
print('baby')
if xinyu <=6:
print('kid')
if xinyu <18:
print('teenager')
if xinyu >=18:
print('abult')
2021-08-14
最赞回答 / 车约会李海钢
age = int(input('请年龄：'))if age >= 18: print('adult')elif age > 6 and age <= 8: print('kid')elif age > 3 and age <= 6: # 年龄3岁到6岁 print('child')
2021-08-13
# coding=utf-8
age = 19
if age>18:
print("adult","咚咚呛的年龄是{0}".format(age))
话说这里为啥打不出来age，pycharm却可以
age = 19
if age>18:
print("adult","咚咚呛的年龄是{0}".format(age))
话说这里为啥打不出来age，pycharm却可以
2021-08-13
最赞回答 / Maybe0829
a的值已经是true，赋值为python。根据or或运算法则，一个为true其结果为true，所以（a or 'world'）为python,最后运行结果为 hello python。（这只是我自己的见解）
2021-08-12
names = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
names.insert(5,'Gen')
names.insert(6,'Phoebe')
names.append('Zero')
print(names)
names.insert(5,'Gen')
names.insert(6,'Phoebe')
names.append('Zero')
print(names)
2021-08-11
