[DOTNET skill series] data type conversion in 4. C #

Automatic conversion: automatic conversion from low to high without losing precision.

Forced conversion: the numeric type can be forced conversion, but pay attention to the loss of precision, empty data, or data overflow.

IntNumber = (Int)"123";//Build error: the string cannot be converted to int, even if the string content is a number!

 

Build error occurs when the above string is forcibly converted to int, which is especially prone to errors.

 

Is Int. parse different from convert. toint?

Difference between Null Value Determination in C # and convert. toint32 () and Int. parse ()

 

Note: The console API Readline in C # Only returns the string type, but cannot return the number type.