m =[89, 72, 88, 79, 99]
n = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
a=list(zip(m,n))
a.sort(reverse=True)
print(a)
for i in range(3):
print(a[i][1])
n = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
a=list(zip(m,n))
a.sort(reverse=True)
print(a)
for i in range(3):
print(a[i][1])
2021-07-06
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
for key,value in d.items():
for i in value:
print(key +':'+ str(i))
for key,value in d.items():
for i in value:
print(key +':'+ str(i))
2021-07-03
d = {
'Alice': [45],
'Bob': [60],
'Candy': [75],
}
L1 = []
L2 =[[50, 61, 66],[80, 61, 66],[88, 75, 90]]
for name in d:
L1.append(name)
for i in L1:
i_index = L1.index(i)
d[i] = d[i] +L2[i_index]
print(d)
'Alice': [45],
'Bob': [60],
'Candy': [75],
}
L1 = []
L2 =[[50, 61, 66],[80, 61, 66],[88, 75, 90]]
for name in d:
L1.append(name)
for i in L1:
i_index = L1.index(i)
d[i] = d[i] +L2[i_index]
print(d)
2021-07-03
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
a = ['Alice', 'Bob', 'Candy', 'Mimi', 'David']
b = []
for i in d:
b.append(i)
for j in a:
if j in b:
print(d[j])
else:
print('NULL')
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
a = ['Alice', 'Bob', 'Candy', 'Mimi', 'David']
b = []
for i in d:
b.append(i)
for j in a:
if j in b:
print(d[j])
else:
print('NULL')
2021-07-03
L = [[1, 2, 3], [5, 3, 2], [7, 3, 2]]
for i in L:
a = 0
b = 0
c = 0
for j in i:
a = i[0]
b = i[1]
c = i[2]
s =2*((a*b) + (a*c) + (b*c))
print('area:' + str(s))
for i in L:
a = 0
b = 0
c = 0
for j in i:
a = i[0]
b = i[1]
c = i[2]
s =2*((a*b) + (a*c) + (b*c))
print('area:' + str(s))
2021-07-03
# Enter a code
#coding = utf-8
a = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
b = [ 89, 72, 88, 79, 99]
c = []
while True:
if len(b) != 0:
print('--------------------------')
biggest = max(b)
print('maxb:' + str(biggest))
#coding = utf-8
a = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
b = [ 89, 72, 88, 79, 99]
c = []
while True:
if len(b) != 0:
print('--------------------------')
biggest = max(b)
print('maxb:' + str(biggest))
2021-07-03
已采纳回答 / 子夜十分
因为for循环遍历整个list，每循环一次都按照顺序使得num+1。遍历所有item，如果条件达到num%2 == 0，就输出对应的item。所以循环过程本身就有一一对应关系。
2021-07-02
最赞回答 / 夜阑卧听
continue和break起的作用是控制循环，continue的意思是满足if中的条件就不会执行continue这行代码之后的代码，直接开始新循环；break是满足if的条件就直接结束循环。
2021-07-02
