类模板的全特化和偏特化

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#include <stdio.h>#include <iostream>template<typename T1,typename T2>class A {public:A(T1 self_str1,T2 self_str2) {printf("类模板：\n");std::cout << self_str1 << std::endl;std::cout << self_str2 << std::endl;printf("\n");}~A() {std::cout << "~A" << std::endl;}};//函数模板的偏特化template<typename T2>class A<double,T2> {public:A(double t1,T2 t2) {printf("类模板偏特化：\n");printf("double:%f\n", t1);std::cout << "T2："<<t2 << std::endl;printf("\n");}~A() {std::cout << "~A:double" << std::endl;}};template<>class A<double, double> {public:A(double t1, double t2) {printf("类模板全特化：\n");printf("double:%f   %f\n", t1,t2);printf("\n");}~A() {std::cout << "~A:double" << std::endl;}};int main() {A<int,int> a(5,6);  //使用类模板A<double,char *> b(5.0,"hello world");//使用偏特化A<double,double> c(0.4,0.5); //使用全特化return 0;}

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