895414_0_0_16955.c 895414_0_0_16955.c(11) : error C2061: 语法错误 : 标识符“DFS” 895414_0_0_16955.c(11) : error C2059: 语法错误 : “;” 895414_0_0_16955.c(11) : error C2059: 语法错误 : “类型”