Objective C Char for循环

Question

Whats wrong with this for loop in Objective C? I get an "Expected Expression" error

for (char c = ‘A’; c <= ‘Z’; c++)
{
   //Do stuff 
}

Answer 1

You're using the wrong characters to brace each char , possibly a result of the type of keyboard you're using? You need the single apostrophe character to denote a char . Try this:

for (char c = 'A'; c <= 'Z'; c++)
{
    //Do stuff 
}

Answer 2

Did you by any chance copy and paste it? The code reads fine, but is wrong because you've used 'A' rather than 'A' . Change the quotes to proper single quotes.