sketch_jan11b:15: error: ISO C++ forbids declaration of 'int_output_pin' with no type
sketch_jan11b:16: error: ISO C++ forbids declaration of 'int_dit_length' with no type
sketch_jan11b:17: error: ISO C++ forbids declaration of 'int_dah_length' with no type
跪求大神
难道是版本问题
