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问题描述
例如在控制台中我必须输入3个数据`
For example in console i must input 3 datas`
string,string,int。
如果我写错了任何一个字，示例第一个数据我写为整数，它会警告我任何消息，例如`
.
if I write any of the words wrongly,for example first data i wrote as integer,it will warn me with any message,for example`
(some data are not correct)
我怎么能通过try catch写出Exception，这个条件我必须在try catch中写出来吗？
我尝试了什么：
也许我必须用int.TryParse写？
How can i write that Exception through try catch,which condition i must write in try catch?
What I have tried:
Maybe i must write with int.TryParse?
推荐答案
For int you must try TryParse method.
For string u can typecast like :
int intA = 10;
string a = (string) intA;
but sometimes this may throw exceptions.
Instead try using :
int intA = 10;
string a = Convert.ToString(intA);
The Convert.ToString() method will never throw exception and handles null as well when compared to typecasting.
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