0_0_37381875_1125.c 0_0_37381875_1125.c(12) : error C2065: “trade”: 未声明的标识符 0_0_37381875_1125.c(12) : error C2059: 语法错误:“)” 0_0_37381875_1125.c(13) : error C2065: “trade”: 未声明的标识符 0_0_37381875_1125.c(13) : error C2059: 语法错误:“)”