STRING：如何从这个输入字符串中获取字符串输出？

Question

如何从以下输入中获取消息

输入由字段名称格式化，用逗号分隔，后跟冒号，空格，然后是错误消息。

<FieldName1>, <FieldName2>, <FieldName3>: <ErrorMessage>"     

输入示例

"ConsumerSecret, ConsumerKey: Invalid application credentials" 
"Password: Invalid Must contain at least one alpha, one numeric, and one special character"

方法

string Message GetErrorByField (string FieldName, string InputString);

1

ErrorMessage = GetErrorByField("ConsumerSecret", "ConsumerSecret, ConsumerKey: Invalid application credentials");

ErrorMessage现在应该等于

"Invalid application credentials".

2

ErrorMessage = GetErrorByField("ConsumerKey", "ConsumerSecret, ConsumerKey: Invalid application credentials");

ErrorMessage现在应该等于

"Invalid application credentials".

3

ErrorMessage = GetErrorByField("Password", "Password: Invalid Must contain at least one alpha, one numeric, and one special character");

ErrorMessage现在应该等于

"Invalid Must contain at least one alpha, one numeric, and one special character".

Answer 1

将InputString方法中的GetErrorByField()即第二个参数拆分为:，然后通过考虑索引为1的拆分字符串得到结果

string Message = InputString.Split(':')[1].Trim();