onstants, and variablesFORTRAN77 coding 방법{RuleColumn기 능11comment (주석문) : c (or *)21-5statement ... assigned to an integer variable, the fractional part of the real value is truncated, and the integer ... 실행 중 하나가 선택되어 실행 (if 문..)3. Repetition : 반복적 실행 (do 문..)3.1 Logical Expressions{expression1