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Author: kaichingchang

fordemo.py

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+import tkinter as tk
+
+class ForDemo(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.grid()
+        self.createWidgets()
+
+    def createWidgets(self):
+        self.winfo_toplevel().title("計算總和")
+
+        self.label = tk.Label(self)
+        self.label["text"] = "請輸入整數："
+        self.label.grid(row=0, column=0, sticky=tk.N+tk.W)
+
+        self.entry = tk.Entry(self)
+        self.entry.grid(row=1, column=0, sticky=tk.N+tk.W)
+
+        self.button = tk.Button(self)
+        self.button["text"] = "計算"
+        self.button["command"] = self.calculate
+        self.button.grid(row=2, column=0, sticky=tk.N+tk.W)
+
+        self.result = tk.Label(self)
+        self.result["text"] = "結果是..."
+        self.result.grid(row=3, column=0, sticky=tk.N+tk.W)
+
+    def calculate(self):
+        number = int(self.entry.get())
+        sum = 0
+        for i in range(number + 1):
+            sum += i
+        else:
+            self.result["text"] = str(sum)
+
+if __name__ == '__main__':
+   root = tk.Tk()
+   app = ForDemo(master=root)
+   app.mainloop()
+
+#《程式語言教學誌》的範例程式
+# http://kaiching.org/
+# 檔名：fordemo.py
+# 功能：示範 for-in-else 陳述
+# 作者：張凱慶

ifdemo.py

@@ -0,0 +1,48 @@
+import tkinter as tk
+
+class IfDemo(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.grid()
+        self.createWidgets()
+
+    def createWidgets(self):
+        self.winfo_toplevel().title("分數檢測")
+
+        self.label = tk.Label(self)
+        self.label["text"] = "請輸入分數："
+        self.label.grid(row=0, column=0, sticky=tk.N+tk.W)
+
+        self.entry = tk.Entry(self)
+        self.entry.grid(row=1, column=0, sticky=tk.N+tk.W)
+
+        self.button = tk.Button(self)
+        self.button["text"] = "檢測"
+        self.button["command"] = self.testing
+        self.button.grid(row=2, column=0, sticky=tk.N+tk.W)
+
+        self.result = tk.Label(self)
+        self.result["text"] = "結果是..."
+        self.result.grid(row=3, column=0, sticky=tk.N+tk.W)
+
+    def testing(self):
+        score = int(self.entry.get())
+        if score <= 100 and score >= 90:
+            self.result["text"] = "很棒！"
+        elif score < 90 and score >= 60:
+            self.result["text"] = "不錯！"
+        elif score < 60 and score >= 0:
+            self.result["text"] = "加油！"
+        else:
+            self.result["text"] = "未知成績！！"
+
+if __name__ == '__main__':
+   root = tk.Tk()
+   app = IfDemo(master=root)
+   app.mainloop()
+
+#《程式語言教學誌》的範例程式
+# http://kaiching.org/
+# 檔名：ifdemo.py
+# 功能：示範 if-elif-else 陳述
+# 作者：張凱慶

quotes.txt

@@ -0,0 +1,5 @@
+Hello world!
+There is no spoon.
+Manners maketh the man.
+You need time to know, to forgive and to love.
+And then be a simple man.

trydemo.py

@@ -0,0 +1,66 @@
+import tkinter as tk
+
+class TryDemo(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.grid()
+        self.createWidgets()
+
+    def createWidgets(self):
+        self.winfo_toplevel().title("計算測試")
+
+        self.button1 = tk.Button(self)
+        self.button1["text"] = "測試1/0"
+        self.button1["width"] = 15
+        self.button1["command"] = self.testing1
+        self.button1.grid(row=0, column=0, sticky=tk.N+tk.W)
+
+        self.button2 = tk.Button(self)
+        self.button2["text"] = "測試1/1"
+        self.button2["width"] = 15
+        self.button2["command"] = self.testing2
+        self.button2.grid(row=0, column=1, sticky=tk.N+tk.W)
+
+        self.result = tk.Label(self)
+        self.result["text"] = "結果是..."
+        self.result["width"] = 30
+        self.result.grid(row=1, column=0, columnspan=2, sticky=tk.N+tk.W)
+
+    def testing1(self):
+        self.result["text"] = "結果是"
+        try:
+            r = 1 / 0
+            self.result["text"] += str(r) + "。"
+        except ZeroDivisionError:
+            self.result["text"] += "除數不能為0！"
+        except:
+            self.result["text"] += "發生其他錯誤！"
+        else:
+            self.result["text"] += "錯誤沒有發生！"
+        finally:
+            self.result["text"] += "測試結束。"
+
+    def testing2(self):
+        self.result["text"] = "結果是"
+        try:
+            r = 1 / 1
+            self.result["text"] += str(r) + "。"
+        except ZeroDivisionError:
+            self.result["text"] += "除數不能為0！"
+        except:
+            self.result["text"] += "發生其他錯誤！"
+        else:
+            self.result["text"] += "錯誤沒有發生！"
+        finally:
+            self.result["text"] += "測試結束。"
+
+if __name__ == '__main__':
+   root = tk.Tk()
+   app = TryDemo(master=root)
+   app.mainloop()
+
+#《程式語言教學誌》的範例程式
+# http://kaiching.org/
+# 檔名：trydemo.py
+# 功能：示範 try-except-finally-else 陳述
+# 作者：張凱慶

whiledemo.py

@@ -0,0 +1,47 @@
+import tkinter as tk
+
+class WhileDemo(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.grid()
+        self.createWidgets()
+
+    def createWidgets(self):
+        self.winfo_toplevel().title("計算總和")
+
+        self.label = tk.Label(self)
+        self.label["text"] = "請輸入整數："
+        self.label.grid(row=0, column=0, sticky=tk.N+tk.W)
+
+        self.entry = tk.Entry(self)
+        self.entry.grid(row=1, column=0, sticky=tk.N+tk.W)
+
+        self.button = tk.Button(self)
+        self.button["text"] = "計算"
+        self.button["command"] = self.calculate
+        self.button.grid(row=2, column=0, sticky=tk.N+tk.W)
+
+        self.result = tk.Label(self)
+        self.result["text"] = "結果是..."
+        self.result.grid(row=3, column=0, sticky=tk.N+tk.W)
+
+    def calculate(self):
+        number = int(self.entry.get())
+        sum = 0
+        i = 0
+        while i <= number:
+            sum += i
+            i += 1
+        else:
+            self.result["text"] = str(sum)
+
+if __name__ == '__main__':
+   root = tk.Tk()
+   app = WhileDemo(master=root)
+   app.mainloop()
+
+#《程式語言教學誌》的範例程式
+# http://kaiching.org/
+# 檔名：whiledemo.py
+# 功能：示範 while-else 陳述
+# 作者：張凱慶

withdemo.py

@@ -0,0 +1,45 @@
+import tkinter as tk
+
+class WithDemo(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.grid()
+        self.createWidgets()
+
+    def createWidgets(self):
+        self.winfo_toplevel().title("開啟檔案")
+
+        self.entry = tk.Entry(self)
+        self.entry.grid(row=0, column=0, sticky=tk.N+tk.W)
+
+        self.button = tk.Button(self)
+        self.button["text"] = "開啟"
+        self.button["command"] = self.loadfile
+        self.button.grid(row=1, column=0, sticky=tk.N+tk.W)
+
+        self.result = tk.Text(self)
+        self.result["width"] = 60
+        self.result["height"] = 10
+        self.result.grid(row=2, column=0, sticky=tk.N+tk.W)
+
+    def loadfile(self):
+        self.result.delete(1.0, tk.END)
+        try:
+            with open(self.entry.get(), "r", encoding="UTF-8") as file:
+                for line in file:
+                    self.result.insert(tk.INSERT, line)
+        except:
+            self.result.insert(tk.INSERT, "檔案不存在")
+            self.result["state"] = "disabled"
+
+
+if __name__ == '__main__':
+   root = tk.Tk()
+   app = WithDemo(master=root)
+   app.mainloop()
+
+#《程式語言教學誌》的範例程式
+# http://kaiching.org/
+# 檔名：withdemo.py
+# 功能：示範 with-as 陳述
+# 作者：張凱慶