A.程序运行结束后,s的值是2 | B.循环体共执行了5次 |
C.程序结束后,t的值为-1 | D.表达式i<k执行了5次 |
A.not "a" in "apple" | B.2023%1000//4= =23 |
C."t" in ["tomato","bear","banana"] | D."abc" *2>="abca" |
A.rec[06]="甜蜜柚" | B.rec["06"]="甜蜜柚" |
C.rec["06"]={"甜蜜柚"} | D.rec["06"]="06":"甜蜜柚" |
A. if vt<=v*1.1: k=0 elif vt<=v*1.5: k=200 else: k=2000 | B. if v*1.1<vt<=v*1.5: k=200 else: k=0 if vt>v*1.5: k=2000 | C. k=0 if vt>v*1.1: k=0 elif vt>v*1.5: k=200 | D. k=2000 if vt<=v*1.1: k=0 elif vt<=v*1.5: k=200 |
A.A | B.B | C.C | D.D |
ch=s[i]
if "0" <=ch<="9":
st=ch+st
else:
if "A"<=ch<="Z":
ch=ch. Lower( ) #函数lower( )的作用是将大写字母转换成小写。
st=st+ch
A.3202lucky! | B.lucky2023! | C.!3202ykcul | D.!ykcul2023 |
if s[i]= ="a" and flag:
n+=1
flag=False
elif s[i]==" ": #s[i]是空格字符
flag=True
i+=1
A.3 | B.4 | C.5 | D.6 |
if "0"<=s[i]<="9":
tmp=
else:
c+=tmp
fac=1
while
x=x//2
y=y//2
fac=fac*2
return fac
while a!=b:
if a<b:
a,b=b,a
return a
ys1=fac1(x,y)
ys2=
return
while x-1>=0 and s[x]= =s[x-1]:
x=x-1
return x
while x+1<=len(s)-1 and s[x]==s[x+1]:
return x
m=
s=s+chr(ord("X")+m)
L=left(s,i)
R=right(s,i)
if
s=s[:L]+s[R+1:]
i=L
else:
A.[1,5,4] | B.[3,2,1] | C.[3,2,1,2] | D.[3,2,1,3] |