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元编程是void<Tp>

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判断学习类型是否属于: void

复制代码
 #include <iostream>

    
 #include <string>
    
 #include <functional>
    
 #include <type_traits>
    
  
    
 void void_print()
    
 {
    
     return;
    
 }
    
  
    
 bool bool_print()
    
 {
    
     return false;
    
 }
    
  
    
 char char_print()
    
 {
    
     return 'a';
    
 }
    
  
    
 unsigned char uchar_print()
    
 {
    
     return static_cast<unsigned char>(10);
    
 }
    
  
    
 short short_print()
    
 {
    
     return 100;
    
 }
    
  
    
 unsigned short ushort_print()
    
 {
    
     return 100;
    
 }
    

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