From 9521e2aa55486842d4467cfdcca8b2446ec033b1 Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sat, 18 Apr 2020 23:12:10 +0800
Subject: [PATCH 01/10] 01

---
 01-hello.rb | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/01-hello.rb b/01-hello.rb
index e0e7bbf..f0e0216 100644
--- a/01-hello.rb
+++ b/01-hello.rb
@@ -1,8 +1,7 @@
 # 题目: 输入名字，输出 "Hello, 名字"
 
 print "请输入你的名字，然后按 Enter: "
-your_name = gets
 
-# ...
+your_name = gets
 
-puts "(请替换成最后的答案)"
\ No newline at end of file
+puts "Hello, #{your_name}"

From 5c4ddfef85b7b49682692bbb2045b7fae2609c9b Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sat, 18 Apr 2020 23:54:02 +0800
Subject: [PATCH 02/10] 02

---
 02-variable.rb | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/02-variable.rb b/02-variable.rb
index a5a4753..d94a652 100644
--- a/02-variable.rb
+++ b/02-variable.rb
@@ -6,8 +6,11 @@
 puts "a 是 #{a}"
 puts "b 是 #{b}"
 
-# ...
+c = a
+a = b
+b = c
 
-puts "a 应该是 2，现在是 #{a}"
-puts "b 应该是 1，现在是 #{b}"
+puts "a \"应该\"是 2，现在是 #{a}"
+puts "b \"应该\"是 1，现在是 #{b}"
 
+# 这才是真正的学习了，什么叫 “ ’=’ 是赋值运算符(assignment operator)，是指派右边的值到左边的变量”

From 24b6f5431917e4d3c05cac5d080ea07b85ca2bb3 Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Mon, 20 Apr 2020 22:56:17 +0800
Subject: [PATCH 03/10] 04

---
 03-triangle.rb | 4 ++--
 04-pizzas.rb   | 7 ++++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/03-triangle.rb b/03-triangle.rb
index fafec03..00e3c5e 100644
--- a/03-triangle.rb
+++ b/03-triangle.rb
@@ -6,6 +6,6 @@
 print "请输入直角三角形的底边，然后按 Enter: "
 b = gets
 
-# .....
+c = a.to_f * b.to_f / 2
 
-puts "直角三角形的面积是: _________"
\ No newline at end of file
+puts "直角三角形的面积是: #{c}"
diff --git a/04-pizzas.rb b/04-pizzas.rb
index 4c2521f..d2c0cb4 100644
--- a/04-pizzas.rb
+++ b/04-pizzas.rb
@@ -6,7 +6,8 @@
 print "请输入有多少人要吃，然后按 Enter: "
 people = gets
 
-# .....
+a = pizzas.to_i
+b = people.to_i
 
-puts "每人可分得几片: _________ 片"
-puts "还剩下几片: _________ 片"
\ No newline at end of file
+puts "每人可分得几片: #{a/b} 片"
+puts "还剩下几片: #{a%b} 片"

From d2abca52ce5992cb8e189f2382a104d1148e132c Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sun, 26 Apr 2020 17:22:10 +0800
Subject: [PATCH 04/10] 05

---
 05-bmi.rb | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/05-bmi.rb b/05-bmi.rb
index 67efdff..51be6c8 100644
--- a/05-bmi.rb
+++ b/05-bmi.rb
@@ -10,8 +10,18 @@
 print "请输入您的身高(厘米)，然后按 Enter: "
 height = gets
 
-# .....
+b = height.to_f/100
 
-puts "您的 BMI 是: _________"
+a = weight.to_f/(b * b)
 
-puts "您的 BMI 结果是: _________(过轻或正常或过重)"
\ No newline at end of file
+if a < 18.5
+  c = "过轻"
+elsif a >= 24
+  c = "过重"
+else
+  c = "正常"
+end
+
+puts "您的 BMI 是: #{a}"
+
+puts "您的 BMI 结果是: #{c}"

From a1f3d0ba0dffd9d939219a3741f9af984b038d7f Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sun, 26 Apr 2020 17:31:09 +0800
Subject: [PATCH 05/10] 06

---
 06-interger-positive.rb | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/06-interger-positive.rb b/06-interger-positive.rb
index a240f5f..c6ad3d6 100644
--- a/06-interger-positive.rb
+++ b/06-interger-positive.rb
@@ -4,7 +4,19 @@
 print "请输入一个整数，然后按 Enter: "
 x = gets
 
-# ....
+if x.to_i > 0
+  a = "正数"
+elsif x.to_i < 0
+  a = "负数"
+else
+  a = "零"
+end
 
-puts "这个数是_____ (正数或零或负数)"
-puts "这个数是_____ (偶数或奇数)"
\ No newline at end of file
+if x.to_i % 2 == 0
+  b = "偶数"
+else
+  b = "奇数"
+end
+
+puts "这个数是#{a}"
+puts "这个数是#{b}"

From 1ed641d585cadc1372cae65e1516e18fcb319038 Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sun, 26 Apr 2020 17:48:38 +0800
Subject: [PATCH 06/10] 07

---
 07-abcde.rb | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/07-abcde.rb b/07-abcde.rb
index 5d0c8c3..d16ac81 100644
--- a/07-abcde.rb
+++ b/07-abcde.rb
@@ -17,6 +17,22 @@
 print "请输入一个整数z，然后按 Enter: "
 z = gets
 
-# ....
+if x.to_i < 0
+  a = "A"
+else
+  if y.to_i > 0
+    if z.to_i > 0
+      a = "B"
+    else
+      a = "C"
+    end
+  else
+    if z.to_i >0
+      a = "D"
+    else
+      a = "E"
+    end
+  end
+end
 
-puts "结果是________(A或B或C或D或E)"
\ No newline at end of file
+puts "结果是#{a}"

From 870eadd3a2a26a6a121fcaf573a53c84a5528435 Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Sun, 26 Apr 2020 22:16:22 +0800
Subject: [PATCH 07/10] 08

---
 08-find-max.rb | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/08-find-max.rb b/08-find-max.rb
index 9e6e643..42bb2b3 100644
--- a/08-find-max.rb
+++ b/08-find-max.rb
@@ -9,6 +9,18 @@
 print "请输入一个数字z，然后按 Enter: "
 z = gets
 
-# ....
+if x > y
+  if x > z
+    c = "x"
+  else
+    c = "z"
+  end
+else
+  if y > z
+    c = "y"
+  else y < z
+    c = "z"
+  end
+end
 
-puts "最大的数是 ________(x或y或z)"
\ No newline at end of file
+puts "最大的数是 #{c}"

From 17793832e5e53bfdc66eab7ec058c126b884a47f Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Mon, 27 Apr 2020 17:25:27 +0800
Subject: [PATCH 08/10] 09

---
 09-function.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/09-function.rb b/09-function.rb
index b1f922d..acc468e 100644
--- a/09-function.rb
+++ b/09-function.rb
@@ -1,7 +1,7 @@
 # 题目: 输入直角三角形的宽和高，输出三角形的面积
 
 def calculate_area(a, b)
-  # ....
+  a.to_f * b.to_f / 2
 end
 
 print "请输入直角三角形的高，然后按 Enter: "
@@ -12,4 +12,4 @@ def calculate_area(a, b)
 
 answer = calculate_area(a,b)
 
-puts "直角三角形的面积是: #{answer}"
\ No newline at end of file
+puts "直角三角形的面积是: #{answer}"

From 5c935c1d23146bca758dfdd7a0d3f0c97d89930b Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Mon, 27 Apr 2020 18:26:54 +0800
Subject: [PATCH 09/10] modified 08

---
 08-find-max.rb |  8 ++++----
 10-function.rb | 16 ++++++++++++++--
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/08-find-max.rb b/08-find-max.rb
index 42bb2b3..e80071b 100644
--- a/08-find-max.rb
+++ b/08-find-max.rb
@@ -9,16 +9,16 @@
 print "请输入一个数字z，然后按 Enter: "
 z = gets
 
-if x > y
-  if x > z
+if x.to_f > y.to_f
+  if x.to_f > z.to_f
     c = "x"
   else
     c = "z"
   end
 else
-  if y > z
+  if y.to_f > z.to_f
     c = "y"
-  else y < z
+  else
     c = "z"
   end
 end
diff --git a/10-function.rb b/10-function.rb
index bb450fb..e677d23 100644
--- a/10-function.rb
+++ b/10-function.rb
@@ -1,6 +1,19 @@
 # 题目: 使用者输入 x,y,z，请输出三个数中最大的数
 
 def find_max(x, y, z)
+  if x > y
+    if x > z
+      c = "x"
+    else
+      c = "z"
+    end
+  else x < y
+    if y > z
+      c = "y"
+    else y < z
+      c = "z"
+    end
+  end
 end
 
 print "请输入一个数字x，然后按 Enter: "
@@ -12,8 +25,7 @@ def find_max(x, y, z)
 print "请输入一个数字z，然后按 Enter: "
 z = gets
 
-# ....
 
 answer = find_max(x,y,z)
 
-puts "最大的数是 #{answer}"
\ No newline at end of file
+puts "最大的数是 #{answer}"

From b54e770f983f7e6ed73e8b11bac2c550c91867c5 Mon Sep 17 00:00:00 2001
From: RealAnalysis <RealAnalysis@RealAnalysiss-iMac.local>
Date: Mon, 27 Apr 2020 18:36:00 +0800
Subject: [PATCH 10/10] 10

---
 10-function.rb | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/10-function.rb b/10-function.rb
index e677d23..cb7faf5 100644
--- a/10-function.rb
+++ b/10-function.rb
@@ -1,16 +1,16 @@
 # 题目: 使用者输入 x,y,z，请输出三个数中最大的数
 
 def find_max(x, y, z)
-  if x > y
-    if x > z
+  if x.to_f > y.to_f
+    if x.to_f > z.to_f
       c = "x"
     else
       c = "z"
     end
-  else x < y
-    if y > z
+  else
+    if y.to_f > z.to_f
       c = "y"
-    else y < z
+    else
       c = "z"
     end
   end