[&]
18.222.118.14
workshop: #lesson-5.html
AD
mod4
py
app-4-1.py
app-4-2.py
# Chapter: 4.1 [22] # Subject: methods # Time: 2 minutes # Go! c=3 def sum1(a,b): return a+b+c print(sum1(1,2)) c=3 def sum2(a,b): c=6 return a+b+c print(sum2(1,2))
# Chapter: 4.2 [23] # Subject: arguments # Time: 3 minutes # Go! def sum1(a,b=9): return a+b print(sum1(1)) print(sum1(1,2)) print('') def sum2(a,b=9): print('a='+str(a)) print('b='+str(b)) return a+b print(sum2(1)) print('') print(sum2(b=1,a=2))
# Chapter: 4.3 [24] # Subject: positional arguments # Time: 5 minutes # Go! c=0 def sum1(a,b=9): c=a+b return a+b print(sum1(1)) print(sum1(1,2)) print('') def sum2(a,b=9): print('a='+str(a)) print('b='+str(b)) print('c='+str(c)) return a+b print(sum2(1)) print('') print(sum2(b=1,a=2)) print('') def sum3(a,b=9,c=0): print('a='+str(a)) print('b='+str(b)) print('c='+str(c)) return a+b+c print('') print(sum3(1,2,10))
# Chapter: 4.4 [25] # Subject: calling methods # Time: 8 minutes # Go! c=0 def sum1(a,b=9): return a+b print(sum1(1,2)) c=sum1(1,2) print('') def sum2(a,b=9): print('a='+str(a)) print('b='+str(b)) print('c='+str(c)) return a+b+c print(sum2(1)) print('') print(sum2(b=1,a=2)) print('') def sum3(a,b,c): print('sum1='+str(sum1(11,22))) print('a='+str(a)) print('b='+str(b)) print('c='+str(c)) return a+b+c print('') sum3(1,2,3)
# Chapter: 4.5 [26] # Subject: class # Time: 8 minutes # Go! class Operations: def sum(self,a,b): return a+b def sub(self,a,b): return a-b def multiply(self,a,b): return a*b def div(self,a,b): return a/b op = Operations() print(op.sum(5,2)) print(op.sub(5,2)) print(op.multiply(5,2)) print(op.div(5,2))
# Chapter: 4.6 [27] # Subject: class constructor # Time: 3 minutes # Go! class Operations: def __init__(self,a,b): self.a=a self.b=b self.c=13 self.__priv = 21 def sum(self,a,b): return a+b def sub(self,a,b): return a-b def multiply(self,a,b): return a*b def div(self,a,b): return a/b def dsp(self): return self.c op = Operations(5,2) print(op.sum(5,2)) print(op.sub(5,2)) print(op.multiply(5,2)) print(op.div(5,2)) print(op.dsp())
# Chapter: 4.7 [28] # Subject: class constructor # Time: 4 minutes # Go! class Operations: c=13 __priv=21 def __init__(self,a,b): self.a=a self.b=b def dsp(self): print(self.__priv) print(self.c) op = Operations(5,2) op.dsp() print(op.c) print(op.__priv)