Why can object initializes assign 'init' but not 'readonly'

[zms9110750]

Isn't init used as a substitute for readonly on property? Why does he have an additional permission?

[huoyaoyuan]

Isn't init used as a substitute for readonly on property?

No. Getter-only auto properties corresponds to readonly fields. They can be assigned in constructor.

Why does he have an additional permission?

readonly means it can only be set by the object itself, in constructor. init allows initialization from the caller that uses the object.

[jnm2]

readonly means it can only be set by the object itself, in constructor.

Or, in any init accessor.