首先粘贴代码： shopping={} key1=input('请输入要存入的商品名称：') value1=input('请输入商品的金额（数字）：') if value1.isdigit(): value1=int(value1) shopping[key1]=value1 for i in shopping: print(i,shopping[i]) ...

strong>Summary: Many of us have had to deal with application crashes that are hard or impossible to reproduce, especially at software developers’ sites. Yet it can be difficult to fix the problem ...

One of the features that makes Python a great programming language is exceptions for error handling. Exceptions are convenient in many ways for handling errors and ...