>
java lang Character digit(intcodePoint,intradix)返回指定基数指定字符(Unicode代码点)的数值。1语法publicstaticintdigit(intcodePoint,
java lang Character digit(charch,intradix)返回指定基数字符ch的数值。1语法publicstaticintdigit(charch,intradix)2参数ch:要转换字符r