new_names = ['Jenny', 'Ellena', 'Alice', 'Candy', 'David', 'Hally', 'Bob', 'Isen', 'Karl']
# 第一种
names = new_names.copy()
print(names)
'''# 第二种
names = []
name_set = set(names)
name_set.update(new_names)
print(names)
'''
# 第一种
names = new_names.copy()
print(names)
'''# 第二种
names = []
name_set = set(names)
name_set.update(new_names)
print(names)
'''
2020-11-15
names = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
name_set = set(names)
n='bob'
if n.capitalize()in name_set :#capitalize 首字母大写
print('True')
else:
print('False')
name_set = set(names)
n='bob'
if n.capitalize()in name_set :#capitalize 首字母大写
print('True')
else:
print('False')
2020-11-15
冒泡排序完成的，仅供参考。
L = [95.9, 85, 59, 66, 72];
n = len(L)
j = 0
for i in range(n):
for j in range(0, n-j-1):
if L[j] < L[j+1] :
L[j], L[j+1] = L[j+1], L[j]
for count in range(n):
if(count<3):
print(L[count])
else:
break
L = [95.9, 85, 59, 66, 72];
n = len(L)
j = 0
for i in range(n):
for j in range(0, n-j-1):
if L[j] < L[j+1] :
L[j], L[j+1] = L[j+1], L[j]
for count in range(n):
if(count<3):
print(L[count])
else:
break
2020-11-14
最新回答 / weixin_慕虎6266149
num = 2sum = 0while True: if num >= 1000: break sum = sum + num num = num + 2print(sum)
2020-11-14
先将tuple转换为list 然后替换list数据 再转换回tuple就可以了
T = (1, 'CH', [3, 4])
t=list(T)
l=t[2]
L=tuple(l)
t[2]=L
T1=tuple(t)
print(T1)
T = (1, 'CH', [3, 4])
t=list(T)
l=t[2]
L=tuple(l)
t[2]=L
T1=tuple(t)
print(T1)
2020-11-13
L = ['Alice', 66, 'Bob', True, 'False', 100]
i = 0
while i<len(L):
if i % 2 !=0:
print(L[i])
i += 1
i = 0
while i<len(L):
if i % 2 !=0:
print(L[i])
i += 1
2020-11-13
names = ['11','22','33','44','55']
name_set = set(names)
print(name_set)
结果：{'22', '33', '44', '11', '55'}
name_set = set(names)
print(name_set)
结果：{'22', '33', '44', '11', '55'}
2020-11-11
L = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
S = set([1, 3, 5, 7, 9, 11])
for i in L:
if i in S:
S.remove(i)
L.remove(i)
S.update(L)
print(S)
S = set([1, 3, 5, 7, 9, 11])
for i in L:
if i in S:
S.remove(i)
L.remove(i)
S.update(L)
print(S)
2020-11-10
L = ['Alice', 66, 'Bob', True, 'False', 100]
for i in range(len(L)):
if i % 2== 0:
print(L[i])
for i in range(len(L)):
if i % 2== 0:
print(L[i])
2020-11-10