么按ALT加上上数字可以打出符号，这个应该是计算机系统程序，计算机内部已经设置好了的，也没有什么解释原因。
\x0d\常用的Alt+数字所产生的符号对照\x0d\佛Alt+41400 = ☆ Alt+41416 = _ Alt+41432 = _ Alt+41448 = _ Alt+41464 = _\x0d\佛Alt+41401 = ★ Alt +41417 = _ Alt+41433 = _ Alt+41449 = _ Alt+41465 = _\x0d\Alt+41402 = ◇ Alt+41418 = _ Alt+41434 = ≠ Alt+41450 = _ Alt+41466 = _\x0d\ Alt+41403 = ◆ Alt+41419 = _ Alt+41435 = ∞ Alt+41451 = _ Alt+41467 = _\x0d\?Alt+41404 = □ Alt+41420 = _ Alt+41436 = _ Alt+41452 = ∫ Alt+ 41468 = ∥\x0d\ 658 = Ⅱ Alt+41659 = Ⅲ Alt+41660 = Ⅳ Alt+41661 = Ⅴ\x0d\?Alt+41662 = Ⅵ Alt+41663 = Ⅶ Alt+41664 = Ⅷ Alt+41665 = Ⅸ Alt+41666 = Ⅹ\x0d\?Alt +174=？ Alt+185 = ? Alt+178 = ? Alt+179 = ? Alt+188 = ?\x0d\Alt+189 = ? Alt+190 = ? Alt+41578 = _ Alt+41579 = _ Alt+41580 = _\x0d\?Alt+41581 = _ Alt+41582 = _ Alt+41583 = _ Alt+41584 = _ Alt+41640 = _\x0d\?Alt+41641 = _ Alt+41642 = _ Alt+41643 = _ Alt+63965 = _ Alt+63966 = _\x0d\?Alt+63967 = _ Alt+63968 = _ Alt+63969 = _ Alt+63970 = _ Alt+63971 = _\ x0d\?Alt+63972 = _ Alt+63973 = _ Alt+63993 = _ Alt+63983 = _ Alt+63984 = _\x0d\?Alt+63985 = _ Alt+63986 = _ Alt+63987 = _ Alt+63988 = _ Alt+63989 = _\x0d\?Alt+63990 = _ Alt+63991 = _ Alt+63992 = _ Alt+63981 = _ Alt+63978 = _\x0d\?Alt+41844 = ㄅ Alt+41845 = ㄆ Alt+41846 = Alt+41847 =ㄈalt+41848 =ㄉ\ x0d \ alt+41849 =ㄊalt+41850 =ㄋalt+41851 =ㄌalt+41852 =ㄍalt+41852 = aalt+41853 =ㄎ\ x0d \ x0d \ x0d \ x0d \ alt+41854 = alt+41854 =ㄏㄏㄏㄏㄏ = ㄐ Alt+41890 = ㄑ Alt+41891 = ㄒ Alt+41892 = ㄓ\x0d\?Alt+41893 = ㄔ Alt+41894 = ㄕ Alt+41895 = ㄖ Alt+41896 = ㄗ Alt+41897 = ㄘ\x0d\Alt+ 41898 =ㄙalt+41899 =ㄚalt+41900 =ㄛalt+41901 =ㄜalt+41902 =ㄝ\ x0d \ alt+41903 =ㄞalt+41904 =ㄟalt+41904 =ㄟalt alt+41905 =ㄠalt+41906 =ㄠalt+41906 =ㄠalt+41906 =ㄡ ㄢ\x0d\?Alt+41908 = ㄣ Alt+41909 = ㄤ Alt+41910 = ㄥ Alt+41911 = ㄦ Alt+41912 = ㄧ\x0d\?Alt+41913 = ㄨ Alt+41914 = ㄩ Alt+41915 = _ Alt+41917 = _ Alt+41918 = ˇ\x0d\ \x0d\开头，请打开文件插入插入指标定位到要特殊字元出现的位置。\x0d\然后，使 NUM LOCK 键开启，并在使用数字键台的按键来键入 Unicode 字元值 \x0d\