1 error: #40: expected an identifier

重复定义

2 warning: #1-D: last line of file ends without a newline

最后一行回车后，新一行不能有空格等空字符

3 error #5:cannot open source input file "~~~~~~~~~~~~~.h",no such file or derectery

没有添加include路径

4 #223-D:function "~~~" declared implicitly