C # Explicit and implicit

1. What problems do they solve?

Consider the following requirements, the person class has a field of age. What if I want to create a person object with age 18 using person P = (person) 18来?

Further, I want to use person P = 18来 to create a person object with age 18, what should I do?

2, using explicit (explicit) and implicit (implicit)

1 class Person2     {3         Private intAge ;4          Public int Age5         {6             Get{returnAge ;}7             Set{age =value;}8         }9 Ten          Public Static Explicit operatorPerson (intAge ) One         { A             return NewPerson () {age =Age ,}; -         } -  the         //Public static implicit operator person (int.) -         //{ -         //return new Person () {age = Age,}; -         //} +     } -  +     class Program A     { at         Static voidMain (string[] args) -         { -Person P = (person) -;//Call Explicit -             //person p =;//Call Implicit -         } -}

Note: Both are available at the same time, otherwise compile errors. This syntax is in fact borrowed from the C + + approach, and has been extended. In general, do not use this type of conversion because it is not intuitive

C # Explicit and implicit