Call the constructor method c ++

#include<iostream>
using namespace std;

class Base
{
public:

    Base(){
        cout<<"hello"<<endl;
    }

    Base (int _a ):base(_a){  // 将_a赋值给base
        base++;
        cout << base << endl;
    }

    Base (int _a ,float _b):base(_a),th(_b){
        cout << base + th <<endl; 
    } 

    Base ( int _a, a float _B, int _c): Base (_a), TH (_B), XH (_c) { 
        COUT << Base + TH + XH << endl; 
    } 
    void Fun0 () {COUT < < Base << endl;}
     int  Base ;
     a float TH;
     int XH; 
}; 

int main () {
     // Base B; is only one such constructor to call otherwise an error 
    Base C ();    // call the default constructor 
    Base T ( 10 ;)   // shorthand parameterized constructor call of
    t.fun0 (); 
    . T Base = 100 ; 
    t.fun0 (); 
    Base T1 = Base ( 100 , 88.12 ); // call the constructor with reference to 
    Base T2 = ( 10 , 100.12 , 20 is );   //  
}

 Note: Base t2 = (10,100.12,20); result output in the wrong black Bantu.