异常处理及程序调试

实例1、模拟幼儿园分苹果

def division():
“功能：分苹果”
print(“\n=============== 分苹果了 ===============\n”)
apple=int(input(“请输入苹果的个数:”))
children=int(input(“请输入来了几个小朋友:”))
result=apple//children
remain=apple-result*children
if remain>0:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,
“个,剩下”,remain,”个。”)
else:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,”个。”)
if __name__==’__main__’:
division()

 实例2、模拟幼儿园分苹果（除数不能为0）

def division():
“功能：分苹果”
print(“\n=============== 分苹果了 ===============\n”)
apple=int(input(“请输入苹果的个数:”))
children=int(input(“请输入来了几个小朋友:”))
result=apple//children
remain=apple-result*children
if remain>0:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,
“个,剩下”,remain,”个。”)
else:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,”个。”)
if __name__==’__main__’:
try:
division()
except ZeroDivisionError:
print(“\n出错了~_~——苹果不能被0个小朋友分！”)

 实例3、模拟幼儿园分苹果（每个人至少分到一个苹果）

def division():
“功能：分苹果”
print(“\n=============== 分苹果了 ===============\n”)
apple=int(input(“请输入苹果的个数:”))
children=int(input(“请输入来了几个小朋友:”))
if apple<children:
raise ValueError(“苹果太少了，不够分…”)
result=apple//children
remain=apple-result*children
if remain>0:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,
“个,剩下”,remain,”个。”)
else:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,”个。”)
if __name__==’__main__’:
try:
division()
except ZeroDivisionError:
print(“\n出错了~_~——苹果不能被0个小朋友分！”)
except ValueError as e:
print(“\n出错了 ~_~——”,e)

 实例4、模拟幼儿园分苹果（应用断言调试）

def division():
“功能：分苹果”
print(“\n=============== 分苹果了 ===============\n”)
apple=int(input(“请输入苹果的个数:”))
children=int(input(“请输入来了几个小朋友:”))
assert apple>children,”苹果不够分”
result=apple//children
remain=apple-result*children
if remain>=0:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,
“个,剩下”,remain,”个。”)
else:
print(apple,”个苹果，平均分给”,children,”个小朋友，每人分”,result,”个。”)
if __name__==’__main__’:
try:
division()
except AssertionError as e:
print(“\n输入有误:”,e)

原文地址：http://www.cnblogs.com/666u/p/16852976.html