sirius's python study notes (1)

1. You can simply judge whether a string is an integer value through the try...except statement, such as the routine

x = raw_input('>')

try:

PRint int(x)

except ValueError:

Return None

2. The append function can also be used to add tuples, as follows

x = ('1','2')

y= []

y.append(x)

print y

The result is: [('1','2')]

The above is the content of sirius's python study notes (1). For more related content, please pay attention to the PHP Chinese website (www.php.cn)!