public static String toHalfWidthString(CharSequence str) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < str.length(); i++) {
            sb.append(toHalfWidthCharacter(str.charAt(i)));
        }
        return sb.toString();
    }
public static String toHalfWidthString(CharSequence str) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < str.length(); i++) {
            sb.append(toHalfWidthCharacter(str.charAt(i)));
        }
        return sb.toString();
    }
public static String toHalfWidthString ( CharSequence str ) { StringBuilder sb = new StringBuilder ( ) ; for ( int i = 0 ; i < str . length ( ) ; i ++ ) { sb . append ( toHalfWidthCharacter ( str . charAt ( i ) ) ) ; } return sb . toString ( ) ; }
转换为半角字符串

@param str
待转换字符串
@return 转换后的字符串
转换为半角字符串