Use Try/Catch in ActionScript
2007-06-09 14:27
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当使用browse（）方法浏览本地文件时，如果之前已经打开了一个文件浏览对话框，则会出错；同时如果用户的浏览器配置为拒绝浏览本地文件时，同样会出错，此时最好采用try/catch 来监视错误。用法如下：
try {
fileReference.browse( );
}
catch (illegalOperation:IllegalOperationError) {
// code to handle error
}
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