Merge pull request #607 from dyzheng/ABACUS_2.2.0_beta

refactor: Keep the style consistent ---- remove #pragma once

Author: dyzheng

source/src_external/src_test/print_tmp.h

@@ -1,4 +1,5 @@
-#pragma once
+#ifndef PRINT_TMP_H
+#define PRINT_TMP_H
 
 #include<iostream>
 #include<fstream>
@@ -42,4 +43,6 @@ void print_matrixess(const std::map<size_t,std::map<size_t,std::map<Abfs::Vector
 				ofs<<c1.first<<"\t"<<c2.first<<"\t"<<c3.first<<std::endl;
 				c3.second->print(ofs, 1E-10)<<std::endl;
 			}
-}
+}
+
+#endif

source/src_external/src_test/src_global/element_basis_index-test.h

@@ -3,8 +3,8 @@
 // DATE : 2016-06-02
 //==========================================================
 
-#pragma once
-
+#ifndef ELEMENT_BASIS_INDEX_TEST_H
+#define ELEMENT_BASIS_INDEX_TEST_H
 
 #include <iostream>
 using namespace std;
@@ -41,4 +41,6 @@ static std::ostream & operator << (std::ostream & os, const ModuleBase::Element_
 		}
 	}
 	return os;
-}
+}
+
+#endif