|string> */ public function rules(): array { return [ 'sex' => ['required', 'in:0,1,2'], 'headface' => ['required', 'string', 'max:50'], // 比如存放 01.gif - 50.gif 'sign' => ['nullable', 'string', 'max:255'], 'email' => ['nullable', 'email', 'max:255'], 'question' => ['nullable', 'string', 'max:100'], 'answer' => ['nullable', 'string', 'max:100'], ]; } public function messages(): array { return [ 'sex.in' => '性别选项无效（0=保密 1=男 2=女）。', 'headface.required' => '必须选择一个头像。', ]; } }