随机数的产生\MGRN1.C
............\MGRN10.C
............\MGRN10.DAT
............\MGRNS.C
............\MGRNS0.C
............\MGRNS0.DAT
............\MRAB1.C
............\MRAB10.C
............\MRAB10.DAT
............\MRABS.C
............\MRABS0.C
............\MRABS0.DAT
............\MRND1.C
............\MRND10.C
............\MRND10.DAT
............\MRNDS.C
............\MRNDS0.C
............\MRNDS0.DAT
随机数的产生