String to Integer Smalltalk

问题

Pretty simple question I need to get an integer from the user and I only know how to get a string from them. So if there is a way to get an integer from the user or to convert the string to an integer please let me know.

回答1:

Found it:

'12345' asNumber.

回答2:

If you are using Squeak or Pharo, learn to use the "Message Finder".

Left click on the background, click Tools > Message Finder. Click on the top left pane. Type:

'12345'. 12345.

Hit Control-S and you have your answer. Specifically, you have three answers: asInteger, asNumber and initialIntegerOrNil.

回答3:

Occasionally you'll want to handle numbers in different bases.

st> s := '3039'.
'3039'
st> Number readFrom: (ReadStream on: s) radix: 16.
12345

回答4:

This page seems to have some conversion examples. Search for Conversion:.

UPDATE

Try using asNumber

来源：https://stackoverflow.com/questions/2226029/string-to-integer-smalltalk