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分享try catch语法问题
try
{
...
}
catch
{
...
}
报错了，catch必须得给它加至少一个参数，catch(int i)这样随便加了下就不报错了，怎么回事？
{
...
}
catch
{
...
}
报错了，catch必须得给它加至少一个参数，catch(int i)这样随便加了下就不报错了，怎么回事？
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赵4老师 2011-07-07
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[Quote=引用 5 楼 a5796489 的回复:]
zhao4zhong1
怎么每次上来都是一堆的英文啊，我英文实在不行请照顾下.......
catch(...) 这叫啥语法？
[/Quote]
英语也是一门计算机语言的说。
亡羊补牢，为时未晚！
zhao4zhong1
怎么每次上来都是一堆的英文啊，我英文实在不行请照顾下.......
catch(...) 这叫啥语法？
[/Quote]
英语也是一门计算机语言的说。
亡羊补牢，为时未晚！
a5796489 2011-07-07
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可是直接打catch(...)是错的啊
太上绝情 2011-07-07
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可能有很多种情况都要抛出，但你怎么判断是那种情况呢？，这就靠catch的参数来确定了。
就想叫yoko 2011-07-07
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语法是人家制定语言的人定的
还能说啥
你只能学习语言的使用方法
还能说啥
你只能学习语言的使用方法
無_1024 2011-07-07
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你要知道捕获的是什么什么异常啊
或者写成 catch(...)
或者写成 catch(...)
a5796489 2011-07-07
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zhao4zhong1
怎么每次上来都是一堆的英文啊，我英文实在不行请照顾下.......
catch(...) 这叫啥语法？
怎么每次上来都是一堆的英文啊，我英文实在不行请照顾下.......
catch(...) 这叫啥语法？
就想叫yoko 2011-07-07
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catch(...)
赵4老师 2011-07-07
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Exception Handling Syntax
Home | Overview | How Do I | FAQ
The structure for C++ exception handling is represented by the following syntax:
try-block :
try compound-statement handler-list
handler-list :
handler handler-listopt
handler :
catch ( exception-declaration ) compound-statement
exception-declaration :
type-specifier-list declarator
type-specifier-list abstract-declarator
type-specifier-list
...
throw-expression :
throw assignment-expressionopt
The compound-statement after the try clause is the guarded section of code. The throw-expression throws an exception. The compound-statement after the catch clause is the exception handler, and catches the exception thrown by the throw-expression. The exception-declaration statement after the catch clause indicates the type of exception the clause handles. The type can be any valid data type, including a C++ class.
If the exception-declaration statement is an ellipsis (...), the catch clause handles any type of exception, including C exceptions as well as system-generated and application-generated exceptions. This includes exceptions such as memory protection, divide-by-zero, and floating-point violations. An ellipsis catch handler must be the last handler for its try block.
The operand of throw is syntactically similar to the operand of a return statement.
Microsoft Specific —>
Microsoft C++ does not support the function exception specification mechanism, as described in section 15.4 of the ANSI C++ draft.
END Microsoft Specific
Home | Overview | How Do I | FAQ
The structure for C++ exception handling is represented by the following syntax:
try-block :
try compound-statement handler-list
handler-list :
handler handler-listopt
handler :
catch ( exception-declaration ) compound-statement
exception-declaration :
type-specifier-list declarator
type-specifier-list abstract-declarator
type-specifier-list
...
throw-expression :
throw assignment-expressionopt
The compound-statement after the try clause is the guarded section of code. The throw-expression throws an exception. The compound-statement after the catch clause is the exception handler, and catches the exception thrown by the throw-expression. The exception-declaration statement after the catch clause indicates the type of exception the clause handles. The type can be any valid data type, including a C++ class.
If the exception-declaration statement is an ellipsis (...), the catch clause handles any type of exception, including C exceptions as well as system-generated and application-generated exceptions. This includes exceptions such as memory protection, divide-by-zero, and floating-point violations. An ellipsis catch handler must be the last handler for its try block.
The operand of throw is syntactically similar to the operand of a return statement.
Microsoft Specific —>
Microsoft C++ does not support the function exception specification mechanism, as described in section 15.4 of the ANSI C++ draft.
END Microsoft Specific
a5796489 2011-07-07
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怎么写？我不要它抓参数
就想叫yoko 2011-07-07
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。。
语法问题啊
如果要捕抓所有异常就 catch ...
语法问题啊
如果要捕抓所有异常就 catch ...
