下列说法正确的是( )
①16/len("ab")**2
②abs(round(-1.7)*2)%8
③chr(ord("0")+4)
④int(str(1010+90)[1:4])//25
item={"竞技类":["铁人三项","电子竞技","霹雳舞"],"球类":["足球","篮球","乒乓球"],
"对抗性":["拳击","跆拳道","卡巴迪","击剑"],"水上":["跳水","龙舟","帆船"]}
print(item["对抗性"][2][::-1])
执行该程序段后,输出的结果是( )
某同学根据输入的坐标点(x,y)来判断该坐标点的位置所在。以下实现该分类的Python程序段中不正确的是( )
result="象限"
if x==0 or y==0:
result="数轴"
if x==0 and y==0:
result="原点"
result="象限"
else:
if x==0 or y==0:
result="数轴"
else:
result="原点"
result="象限"
elif x==0 and y==0:
result="原点"
else:
result="数轴"
if x==0 and y==0:
result="原点"
elif x==0 or y==0:
result="数轴"
for i in range(len(s)):
if tmin <= s[i] <= tmax:
continue
c+=1
print("超出适宜温度范围的次数",c)
while i<len(s):
if not(tmin<=s[i]<=tmax):
c+=1
i+=1
print("超出适宜温度范围的次数",c)
for i in s:
if s[i]<tmin or s[i]>tmax:
c+=1
print("超出适宜温度范围的次数",c)
for i in range(len(s)):
if not(s[i]>=tmin and s[i]<=tmax):
c[i]=1
print("超出适宜温度范围的次数”,c)
s="0923 Hangzhou Yayunhui"; t=""
for i in range(len(s)):
j=s[i]
if not j>="a" or j>"z":
t=""
t=j+t
print(t)
程序运行后,输出的内容是( )
from random import randint
s=["C++","Java","VB","Pascal","C","Python"]
for i in range(2):
k=randint(0,2)*2
s=s[:k]+s[k+1:]
print(s)
执行该程序段后,变量s的值不可能是( )