编程结果有问题，求帮助
main.c: In function `main':main.c:11: warning: too many arguments for format
main.c:13: warning: too many arguments for format
main.c:15: warning: too many arguments for format
main.c:17: warning: too many arguments for format
main.c:19: warning: too many arguments for format
main.c:4: warning: unused variable `b'
各位大神，编程之后出现这个是啥意思啊
