View Compilation Error

0_0_2229709_10310.cpp
0_0_2229709_10310.cpp(9) : error C2062: 意外的类型“double” 
0_0_2229709_10310.cpp(30) : error C2059: 语法错误 : “}”
0_0_2229709_10310.cpp(30) : error C2143: 语法错误 : 缺少“;”(在“}”的前面)
0_0_2229709_10310.cpp(30) : error C2059: 语法错误 : “}”