Chapter 6 Quiz

10?試題

1.?

What does the following Python Program print out?

str1 = "Hello" str2 = 'there' bob = str1 + str2 print bob

Hellothere

Hello there

Hello

there

Hello

2.?

What does the following Python program print out?

x = '40' y = int(x) + 2 print y

402

42

int402

x2

3.?

How would you use the index operator [] to print out the letter q from the following string?

x = 'From marquard@uct.ac.za'

print x[q]

print x[8]

print x[9]

print x[-1]

print x[7]

4.?

How would you use string slicing [:] to print out 'uct' from the following string?

x = 'From marquard@uct.ac.za'

print x[14:17]

print x[14:3]

print x[15:18]

print x[14+17]

print x[15:3]

print x[14/17]

5.?

What is the iteration variable in the following Python code?

for letter in 'banana' :print letter

print

letter

for

'banana'

in

6.?

What does the following Python code print out?

print len('banana')*7

bananabananabananabananabananabananabanana

42

banana7

0

7.?

How would you print out the following variable in all upper case in Python?

greet = 'Hello Bob'

console.log(greet.toUpperCase());

print uc($greet);

print greet.upper()

puts greet.ucase; 8.?

Which of the following is?not?a valid string method in Python?

boldface()

upper()

lower()

lstrip()

startswith()

9.?

What will the following Python code print out?

data = 'From stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008' pos = data.find('.') print data[pos:pos+3]

mar

uct

Sat

.ma

10.?

Which of the following string methods removes whitespace from both the beginning and end of a string?

strip()

split()

wsrem()

strtrunc()

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