encoderadixstr("123","0x",16)结果为"0x310x320x33" 前缀
encoderadixstr("123","h",0x80000000+16)结果为"31h32h33h" 后缀
decoderadixstr("0x310x320x33",2,16)的结果为123
encoderadixstr("123","h",0x80000000+16)结果为"31h32h33h"
decoderadixstr("31h32h33h",1,0x80000000+16)结果为"123"
encoderadixstr("天软","0x",16)结果为"0xCC0xEC0xC80xED" 默认大写
encoderadixstr("天软","0x",0x40000000+16)结果为"0xcc0xec0xc80xed" 小写字母