0_0_2897645_2397.c 0_0_2897645_2397.c(3) : error C2061: 语法错误 : 标识符“f” 0_0_2897645_2397.c(3) : error C2059: 语法错误 : “;” 0_0_2897645_2397.c(3) : error C2059: 语法错误 : “类型”