0_0_14811452_27550.c 0_0_14811452_27550.c(9) : error C2440: “=”: 无法从“double (__cdecl *)(double)”转换为“double” 0_0_14811452_27550.c(9) : error C2146: 语法错误: 缺少“;”(在标识符“d”的前面)