iOS 鍵盤類型

text.keyboardType = UIKeyboardTypeNumberPad; 

typedef enum {

    UIKeyboardTypeDefault,       默認鍵盤，支持所有字符         

    UIKeyboardTypeASCIICapable,  支持ASCII的默認鍵盤

    UIKeyboardTypeNumbersAndPunctuation,  標準電話鍵盤，支持＋＊＃字符

    UIKeyboardTypeURL,            URL鍵盤，支持.com按鈕 只支持URL字符

UIKeyboardTypeNumberPad,              數字鍵盤

UIKeyboardTypePhonePad,     電話鍵盤

    UIKeyboardTypeNamePhonePad,   電話鍵盤，也支持輸入人名

UIKeyboardTypeEmailAddress,   用於輸入電子 郵件地址的鍵盤     

UIKeyboardTypeDecimalPad,     數字鍵盤 有數字和小數點

    UIKeyboardTypeTwitter,        優化的鍵盤，方便輸入@、#字符

    UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, 

} UIKeyboardType;