diff --git a/week6/ex1.py b/week6/ex1.py
new file mode 100644
index 0000000..18a6513
--- /dev/null
+++ b/week6/ex1.py
@@ -0,0 +1,11 @@
+def main():
+    print('==Exercise 1==')
+    
+    name = input("Please input your name > ")
+    print("Welcome on board 007." if name=="Bond" else f"Good morning {name}.")
+
+    print('==End Of Ex1==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/ex2.py b/week6/ex2.py
new file mode 100644
index 0000000..802f419
--- /dev/null
+++ b/week6/ex2.py
@@ -0,0 +1,11 @@
+def main():
+    print('==Exercise 2==')
+    
+    name = input("Please input your name > ")
+    print("Welcome on board 007." if name.lower()=="Bond".lower() else f"Good morning {name}.")
+
+    print('==End Of Ex2==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/ex3.py b/week6/ex3.py
new file mode 100644
index 0000000..d822583
--- /dev/null
+++ b/week6/ex3.py
@@ -0,0 +1,21 @@
+def main():
+    print('==Exercise 3==')
+    
+    flag=True
+    while flag:
+        a = input("pls input a number:")
+        try: 
+            a = int(a)
+            flag=False
+        except :
+            print("pls input a number!")
+    
+    print(f"Test if the number {a} is even: {True if a%2==0 else False}")
+
+    #我其实挺想直接a%2==0的，不过尊重一下本节课的主题
+    
+    print('==End Of Ex3==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/ex4.py b/week6/ex4.py
new file mode 100644
index 0000000..e4032bc
--- /dev/null
+++ b/week6/ex4.py
@@ -0,0 +1,24 @@
+from decimal import Decimal
+#引入decimal模块是因为python不是默认高精浮点数
+
+def main():
+    print('==Exercise 4==')
+
+    flag=True
+    while flag:
+        a = input("pls input a decimal:")
+        try: 
+            a = Decimal(a)
+            flag=False
+        except :
+            print("pls input a decimal!")
+    
+    d = a-int(a)
+
+    print(f"Decimal Part: {d if d else 'INTEGER'}")
+
+    print('==End Of Ex4==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/ex5.py b/week6/ex5.py
new file mode 100644
index 0000000..8f48e72
--- /dev/null
+++ b/week6/ex5.py
@@ -0,0 +1,30 @@
+from decimal import Decimal
+#引入decimal模块是因为python不是默认高精浮点数
+
+def main():
+    print('==Exercise 5==')
+    
+    flag=True
+    while flag:
+        a = input("number1=")
+        try: 
+            a = Decimal(a)
+            flag=False
+        except :
+            print("pls input a number!")
+    flag=True
+    while flag:
+        b = input("number2=")
+        try: 
+            b = Decimal(b)
+            flag=False
+        except :
+            print("pls input a number!")
+
+    print(f"The result is {a+b if a*b>Decimal(1000.0) else a*b}")
+
+    print('==End Of Ex5==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/ex6.py b/week6/ex6.py
new file mode 100644
index 0000000..a54c018
--- /dev/null
+++ b/week6/ex6.py
@@ -0,0 +1,35 @@
+from decimal import Decimal
+#引入decimal模块是因为python不是默认高精浮点数
+
+def main():
+    print('==Exercise 6==')
+    
+    i = input("Input the temperature you like to convert? (e.g., 45F, 102C etc.) :").lower()
+
+    ins = ""
+    use_celsius = False
+
+    for ii in i:
+        if ii in '1234567890.':
+            ins+=ii
+        elif ii in 'cf':
+            use_celsius = ii == 'c'
+            break
+        else:
+            print(f"Unexcepted char {ii}! Ignored.")
+    if len(ins)!=len(i)-1:
+        print(f"WARNING! content below \'c\' or \'f\' is ignored! (using {ins} {'c' if use_celsius else 'f'})")
+    
+    ins = Decimal(ins)
+    #c/5 = f-32/9
+    #f = c*9/5+32
+    #c = (f-32)*5/9
+    o = ins*9/5+Decimal(32.0) if use_celsius else (ins-Decimal(32.0))*5/9
+
+    print(f"The temperature in {'Fahrenheit' if use_celsius else 'Celsius'} is {o} degrees.")
+
+    print('==End Of Ex6==')
+    return 0
+
+if __name__ == '__main__':
+    main()
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diff --git a/week6/run_all.py b/week6/run_all.py
new file mode 100644
index 0000000..229d7ed
--- /dev/null
+++ b/week6/run_all.py
@@ -0,0 +1,7 @@
+import ex1,ex2,ex3,ex4,ex5,ex6
+ex1.main()
+ex2.main()
+ex3.main()
+ex4.main()
+ex5.main()
+ex6.main()
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