diff --git a/ch1_firstCase/ch1_switch/customer.cpp b/ch1_firstCase/ch1_switch/customer.cpp
index 7ffc1a4..499bf4d 100644
--- a/ch1_firstCase/ch1_switch/customer.cpp
+++ b/ch1_firstCase/ch1_switch/customer.cpp
@@ -17,13 +17,10 @@ std::__cxx11::string Customer::getName()
 
 std::__cxx11::string Customer::statement()
 {         
-    int frequentRenterPoints = 0;           //积分点
-    
     std::string result = "Rental Record for " + getName() + "\n";
     std::vector<Rental>::iterator iter = _rentals.begin();
     for(;iter != _rentals.end();++iter) {
         Rental each = *iter;
-        frequentRenterPoints+=each.getFrequentRenterPoints();
 
         //添加详单
         result += "\t" + each.getMovie().getTitle() + "\t"
@@ -31,7 +28,7 @@ std::__cxx11::string Customer::statement()
     }
     //添加脚注
     result += "Amount owed is " + std::to_string(getTotalCharge()) + "\n";
-    result += "You earned " + std::to_string(frequentRenterPoints) +
+    result += "You earned " + std::to_string(getTotalfrequentRenterPoints()) +
             " frequent renter points" + "\n";
     return result;
 }
@@ -57,3 +54,14 @@ double Customer::getTotalCharge()
     return result;
 }
 
+int Customer::getTotalfrequentRenterPoints()
+{
+    int result = 0;                 //积分点
+    std::vector<Rental>::iterator iter = _rentals.begin();
+    for(;iter != _rentals.end();++iter) {
+        Rental each = *iter;
+        result += each.getFrequentRenterPoints();
+    }
+    return result;
+}
+
diff --git a/ch1_firstCase/ch1_switch/customer.h b/ch1_firstCase/ch1_switch/customer.h
index 39ca826..94822f5 100644
--- a/ch1_firstCase/ch1_switch/customer.h
+++ b/ch1_firstCase/ch1_switch/customer.h
@@ -17,6 +17,7 @@ class Customer
     std::vector<Rental>& getRentals();
     double amountFor(Rental aRental);
     double getTotalCharge();
+    int getTotalfrequentRenterPoints();
 
 private:
     std::string _name;                  //顾客名