From 4ce9ef2078854b5aa3fa97472a4019a9bf687cb0 Mon Sep 17 00:00:00 2001
From: Brook-Hsu <a13288007769@163.com>
Date: Fri, 3 Sep 2021 20:52:24 +0800
Subject: [PATCH 1/2] Fix issue #159

---
 .../10_day_practice/day4/时钟练习题/重载++的时钟.cpp        | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/practical_exercises/10_day_practice/day4/时钟练习题/重载++的时钟.cpp b/practical_exercises/10_day_practice/day4/时钟练习题/重载++的时钟.cpp
index e85fd20..aa62d65 100644
--- a/practical_exercises/10_day_practice/day4/时钟练习题/重载++的时钟.cpp
+++ b/practical_exercises/10_day_practice/day4/时钟练习题/重载++的时钟.cpp
@@ -1,5 +1,5 @@
 /*
-���һ��ʱ���࣬�ܹ���¼ʱ���֡��룬��������++�������ÿִ��һ��++���㣬��ʱ1�룬��Ҫʹ��ʱ�����ܹ��Զ���λ��
+设计一个时钟类，能够记录时、分、秒，重载它的++运算符，每执行一次++运算，加时1秒，但要使计时过程能够自动进位。
 */
 #include<iostream>
 using namespace std;
@@ -12,7 +12,7 @@ class Time{
         }
         void operator++();
         void showTime(){
-            cout<<"��ǰʱ��Ϊ��"<<hour<<":"<<minute<<":"<<second<<endl;
+            cout<<"当前时间为："<<hour<<":"<<minute<<":"<<second<<endl;
         }
 
     private:
@@ -22,7 +22,7 @@ class Time{
 
 void Time::operator++(){
     ++second;
-    if(second=60){
+    if(second==60){
         second=0;
         ++minute;
         if(minute==60){

From 6b3adbccbe4ec2eb56ddf8c926acb7d4e1141471 Mon Sep 17 00:00:00 2001
From: Brook-Hsu <a13288007769@163.com>
Date: Fri, 3 Sep 2021 20:55:57 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E9=87=8D=E8=BD=BD--?=
 =?UTF-8?q?=E8=BF=90=E7=AE=97=E7=AC=A6=E7=9A=84bug?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../day7/一元运算符/秒钟自增运算.cpp          | 24 +++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/practical_exercises/10_day_practice/day7/一元运算符/秒钟自增运算.cpp b/practical_exercises/10_day_practice/day7/一元运算符/秒钟自增运算.cpp
index 1a63193..f420d36 100644
--- a/practical_exercises/10_day_practice/day7/一元运算符/秒钟自增运算.cpp
+++ b/practical_exercises/10_day_practice/day7/一元运算符/秒钟自增运算.cpp
@@ -1,4 +1,4 @@
-//���һ��ʱ����Time�����ܹ�������ӵ��������㡣
+//设计一个时间类Time，它能够完成秒钟的自增运算。
 
 #include<iostream>
 using namespace std;
@@ -9,7 +9,7 @@ class Time{
     public:
         Time(int h,int m, int s);
         Time operator++();
-        //��Ԫ������Ҫ����
+        //友元重载需要参数
         friend Time operator--(Time &t);
         void display(); 
 };
@@ -42,14 +42,14 @@ Time Time::operator++(){
 }
 Time operator--(Time &t){
     --t.second;
-    if (t.second>=60){
-        t.second=0;
-        ++t.minute;
-        if(t.minute>=60){
-            t.minute=0;
-            ++t.hour;
-            if(t.hour>=24)
-                t.hour=0;
+    if (t.second<0){
+        t.second=59;
+        --t.minute;
+        if(t.minute<0){
+            t.minute=59;
+            --t.hour;
+            if(t.hour<0)
+                t.hour=23;
         }
     }
     return t;  
@@ -61,9 +61,9 @@ int main(int argc, char const *argv[])
 {
     Time t1(23,59,59);
     t1.display();
-    ++t1; //��ʽ����
+    ++t1; //隐式调用
     t1.display();
-    t1.operator++(); //��ʽ����
+    t1.operator++(); //显式调用
     t1.display();
     Time t2(24,60,60);
     t2.display();