stu=['Alice', 'Bob', 'Candy', 'David', 'Ellena']
stu[0]=stu[-1]
stu[-1]=stu[1]
stu[1]="Alice"
print(stu)
stu[0]=stu[-1]
stu[-1]=stu[1]
stu[1]="Alice"
print(stu)
2020-12-10
age = 1
if age >= 18:
print('adult')
elif age > 6:
print('teenager')
elif age > 3:
print('kid')
elif age > 0:
print('baby')
else:
print('error')
if age >= 18:
print('adult')
elif age > 6:
print('teenager')
elif age > 3:
print('kid')
elif age > 0:
print('baby')
else:
print('error')
2020-12-10
names = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
names.append('Zero')
names.insert(-1, 'Phoebe')
names.insert(-2, 'Gen')
print(names)
names.append('Zero')
names.insert(-1, 'Phoebe')
names.insert(-2, 'Gen')
print(names)
2020-12-06
如果使用old_score = d['Alice'],若不存在Alice會報錯
但是old_score = d.get['Alice']就不會,只會返回None
但是old_score = d.get['Alice']就不會,只會返回None
2020-12-04
a=['Jenny','Ellena','Alice','Candy']
b=['David','Hally','Bov','Lsen','Karl']
c=set(a)
c.update(b)
print(c)
b=['David','Hally','Bov','Lsen','Karl']
c=set(a)
c.update(b)
print(c)
2020-12-01
L = [75, 92, 59, 68, 99]
sum=sum(L) #求和
number=len(L) #求個數
print(sum/number) #求平價
sum=sum(L) #求和
number=len(L) #求個數
print(sum/number) #求平價
2020-11-29
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
print(d)
w= d.pop('Alice')
print(d)
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
print(d)
w= d.pop('Alice')
print(d)
2020-11-28
d={
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
wgx=d.get('Alice')
d['Alice']=60
print(d)
print(wgx)
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
wgx=d.get('Alice')
d['Alice']=60
print(d)
print(wgx)
2020-11-28