
Câu hỏi về xâu kí tự
Authored by Thuỷ Thuỷ
Other
10th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1. Các xâu kí tự sau có hợp lệ hay không?
"123&*()+-ABC"
101
Tây Nguyên
11111111= 256
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2. Xác định độ dài của xâu "Tin học 10"?
9
10
8
12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3. Sau khi thực hiện các lệnh sau, biến skq sẽ có giá trị bao nhiêu? >>> s = “81723” >>> skq = “” >>> for ch in s: if int(ch) % 2 !=0: skq = skq + ch
172
817
723
173
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4. Cho s = “Tin học”. lệnh print(s[8]) cho kết quả nào dưới đây?
Chương trình báo lỗi
"c"
"h"
"o"
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5: Xâu kí tự được đặt trong cặp dấu:
Nháy đơn (‘’) hoặc nháy kép (“”)
Ngoặc đơn ()
Ngoặc vuông []
Ngoặc nhọn {}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6: Xâu rỗng là xâu có độ dài bằng bao nhiêu?
1.
2.
0.
3.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7: Để biết độ dài của xâu s ta dùng hàm gì?
str(s).
len(s).
length(s).
s.len().
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