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View Compilation Error

0_0_7226695_7458.cpp
0_0_7226695_7458.cpp(7) : error C2146: 语法错误 : 缺少“;”(在标识符“acos”的前面)
0_0_7226695_7458.cpp(7) : error C2734: “pi” : 如果不是外部的,则必须初始化常数对象
0_0_7226695_7458.cpp(7) : error C2501: “acos” : 缺少存储类或类型说明符
0_0_7226695_7458.cpp(7) : error C2365: “acos” : 重定义;以前的定义是“成员函数”
0_0_7226695_7458.cpp(40) : error C2668: “atan2” : 对重载函数的调用不明确
        VC\include\math.h(592): 可能是“long double atan2(long double,long double)”
        VC\include\math.h(544): 或       “float atan2(float,float)”
        VC\include\math.h(186): 或       “double atan2(double,double)”
        试图匹配参数列表“(int, int)”时


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