● raw_input("String")
Usage:
String name = raw_input("Hi.
What's your name?")
then the program takes the user input and assign it to name
● Print Statement
Input:
print "ABCDEFG",
print "HIJKLMN"
Output:
"ABCDEFG HIJKLMN"
Note:
Notice the space between the first and second print statements
That is created by the comma ( , )
OR
Input:
print >> sys.stdout, "ABCDEFG"
Output:
"ABCDEFG"
Note:
Notice the 〝sys.stdout〞 after the 〝>>〞,
if we change the 〝stdout〞 to 〝stderr〞
then the message will be treat as an error message.
● Breaking up statements
When you need to
break a line into two,
just use \ at any place where you can place a space
example:
print "XXXXXXXXXXXXXXXXXXXXXXXXXX" + "ZZZZZZZZZZZZZZZZZZZZZZZ"
is equals to
print
"XXXXXXXXXXXXXXXXXXXXXXXXXX" + \
"ZZZZZZZZZZZZZZZZZZZZZZZ"
● Changing type
◎ float(x) Return
a floating-point valu by converting x
float("10") = 10.0
◎ int(x) Return
a integer value by converting x
int("10") = 10
◎ str(x) Return
a string value by converting x
str(10) = "10"
● Using inport statement
If we need to use
a module, we use import statement.
take module 〝random〞 for example:
import random
is all we need to type for using module random in our function
● len()
◎ String:
s = "012345678"
len(s) = 9
◎ List:
s = [0, 1, 2, 3, 4, 5, 6]
len(s) = 7
◎ Map:
s = {a:A, b:B, c:C, d:D}
len(s) = 4
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