From f723dfc4e62130892c10e484e55417f6c9679d00 Mon Sep 17 00:00:00 2001
From: 201816040317 <56635386+201816040317@users.noreply.github.com>
Date: Sun, 20 Oct 2019 12:01:51 +0800
Subject: [PATCH 1/2] Update Ex06_50.cpp

---
 201816040317/Ex06_50.cpp | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/201816040317/Ex06_50.cpp b/201816040317/Ex06_50.cpp
index 8960e30..263cd86 100644
--- a/201816040317/Ex06_50.cpp
+++ b/201816040317/Ex06_50.cpp
@@ -7,18 +7,18 @@ void tripleByReference(int & );//pass-by-reference
 
 int main()
 {
-    int count1,count2;
+    int count;
 
-    cin>>count1;
-    cin>>count2;
+    cout<<"Enter a value for count:";
+    cin>>count;
 
-    cout<<"count1="<<count1<<"  before tripleByValue\n";
-    cout<<tripleByValue(count1)<<endl;
-    cout<<"count1="<<count1<<"  after tripleByValue\n"<<endl;
 
-    cout<<"count2="<<count2<<"  before ripleByReferencee\n";
-    tripleByReference(count2);
-    cout<<"count2="<<count2<<"  after ripleByReference\n"<<endl;
+    cout<<"Value of count before call to tripleByValue() is:"<<count<<endl;
+    cout<<"Value returned from tripleByValue() is:"<<tripleByValue(count)<<endl;//打印调用tripleByValue()函数后的值
+    cout<<"Value of count (in main) after tripleCallByValue() is"<<count<<endl<<endl;//打印调用tripleByValue()函数后的形参的值
+
+    cout<<"Value of count before call to tripleByReference() is:"<<count<<endl;
+    cout<<"Value of count (in main) after call to tripleByReference() is:"<<count<<endl;//打印调用tripleByReference()后的count的值
 
     return 0;
 }

From 2293df8046acb803b972ceed10c5c21bb58d8026 Mon Sep 17 00:00:00 2001
From: 201816040317 <56635386+201816040317@users.noreply.github.com>
Date: Sun, 20 Oct 2019 22:54:20 +0800
Subject: [PATCH 2/2] Create Ex06_50.cpp

This my assignment01;
My ID  is:201816040317
---
 Ex06_50.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Ex06_50.cpp

diff --git a/Ex06_50.cpp b/Ex06_50.cpp
new file mode 100644
index 0000000..263cd86
--- /dev/null
+++ b/Ex06_50.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+
+using namespace std;
+
+int tripleByValue(int);//pass-by-value
+void tripleByReference(int & );//pass-by-reference
+
+int main()
+{
+    int count;
+
+    cout<<"Enter a value for count:";
+    cin>>count;
+
+
+    cout<<"Value of count before call to tripleByValue() is:"<<count<<endl;
+    cout<<"Value returned from tripleByValue() is:"<<tripleByValue(count)<<endl;//打印调用tripleByValue()函数后的值
+    cout<<"Value of count (in main) after tripleCallByValue() is"<<count<<endl<<endl;//打印调用tripleByValue()函数后的形参的值
+
+    cout<<"Value of count before call to tripleByReference() is:"<<count<<endl;
+    cout<<"Value of count (in main) after call to tripleByReference() is:"<<count<<endl;//打印调用tripleByReference()后的count的值
+
+    return 0;
+}
+
+int tripleByValue(int count)
+{
+    return count = count*3;//caller's argument not modified
+}//end function tripleByValue
+
+void tripleByReference(int &count)
+{
+    count =3*count;//caller's argument modified
+}