Thank you for reply,But that's not going to work。If I set the string variable c= variable A -variable B,I'm going to get a string a - b。If I set an integer variable c,So I can't use expression subtraction,There's no confirm button for me to click.If so, can you give me a correct picture?Thank...
Who can teach me?how to convert data type?
For example,I have
a='3',b='2'
They are all strings。
But I want to take the number 3 minus the number 2,What should I do?
Is there a way to convert a string to an integer?
These are translated by software,If you can read it, please help me.