value
设置错误代码值。
Return
错误代码枚举。
Parameters
code
错误代码。
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Return
the enum constant with the specified name
Throws
Illegal
if this enum type has no constant with the specified name