From a04d1df9490c7e0247783cb2a62df811788c15d8 Mon Sep 17 00:00:00 2001
From: Ling Jin <ling.jin1@rwth-aachen.de>
Date: Tue, 13 Dec 2022 10:48:39 +0100
Subject: [PATCH] The first commit 1
---
.idea/.name | 1 +
.idea/{pythonProject.iml => Example.iml} | 0
.idea/modules.xml | 2 +-
.idea/vcs.xml | 2 +-
Example.py | 35 ++++++++++++++++++++++++
main.py | 29 --------------------
6 files changed, 38 insertions(+), 31 deletions(-)
create mode 100644 .idea/.name
rename .idea/{pythonProject.iml => Example.iml} (100%)
create mode 100644 Example.py
delete mode 100644 main.py
diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 0000000..3f79d09
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+Example.py
\ No newline at end of file
diff --git a/.idea/pythonProject.iml b/.idea/Example.iml
similarity index 100%
rename from .idea/pythonProject.iml
rename to .idea/Example.iml
diff --git a/.idea/modules.xml b/.idea/modules.xml
index e15ec35..545a376 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,7 +2,7 @@
<project version="4">
<component name="ProjectModuleManager">
<modules>
- <module fileurl="file://$PROJECT_DIR$/.idea/pythonProject.iml" filepath="$PROJECT_DIR$/.idea/pythonProject.iml" />
+ <module fileurl="file://$PROJECT_DIR$/.idea/Example.iml" filepath="$PROJECT_DIR$/.idea/Example.iml" />
</modules>
</component>
</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 94a25f7..35eb1dd 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
- <mapping directory="$PROJECT_DIR$" vcs="Git" />
+ <mapping directory="" vcs="Git" />
</component>
</project>
\ No newline at end of file
diff --git a/Example.py b/Example.py
new file mode 100644
index 0000000..c2b02ea
--- /dev/null
+++ b/Example.py
@@ -0,0 +1,35 @@
+#导入包
+#pyomo environment
+from pyomo.environ import *
+#pyomo optimization
+from pyomo.opt import SolverFactory
+
+#实例化一个具体model，一般的最优化问题用到的都是concrete model，而不是abstract model。
+#create a model 实例化类
+model = ConcreteModel()
+
+#declare decision variables 宣布决策变量
+#domain 域
+model.x = Var(domain = NonNegativeReals)
+model.y = Var(domain = NonNegativeReals)
+
+#对于没有index的版本，直接列公式即可。
+#expr是objective function的公式，sense是我们要最大化还是最小化
+model.obj = Objective(expr=3 * model.x + 4 * model.y, sense=minimize)
+
+#declare constraint 宣布约束条件
+model.con1 = Constraint(expr=2 * model.x + model.y >= 15)
+
+model.con2 = Constraint(expr=model.x + 2 * model.y >= 17)
+
+model.con3 = Constraint(expr=model.x + model.y >= 10)
+
+#SolverFactory通过使用给出的求解器名称的参数用来创建执行优化的对象。
+result = SolverFactory("gurobi").solve(model)
+
+#pprint()：Data pretty printer。模块提供了美化打印任意python数据类型的功能，让显示结果显得更加漂亮"
+#print（)输出结果都在一行，不方便查看，而pprint采用了分行打印输出
+model.pprint()
+
+#solve函数将结果加载到model中，因此以下一行写出更新后的值。
+model.display()
diff --git a/main.py b/main.py
deleted file mode 100644
index 8141457..0000000
--- a/main.py
+++ /dev/null
@@ -1,29 +0,0 @@
-<<<<<<< HEAD
-from pyomo.environ import *
-from pyomo.opt import SolverFactory
-
-model = ConcreteModel()
-
-model.x = Var(domain = NonNegativeReals)
-model.y = Var(domain = NonNegativeReals)
-
-model.obj = Objective(expr=3 * model.x + 4 * model.y, sense=minimize)
-
-model.con1 = Constraint(expr=2 * model.x + model.y >= 15)
-
-model.con2 = Constraint(expr=model.x + 2 * model.y >= 17)
-
-model.con3 = Constraint(expr=model.x + model.y >= 10)
-
-result = SolverFactory("glpk").solve(model)
-
-model.pprint()
-
-model.display()
-=======
-l = ['a', 'x', 'b', 'x', 'c', 'x']
-print(l)
-l.pop(2) # remove the first item with value 'x'
-print(l)
-
->>>>>>> origin/main
--
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