单项选择题

用程序计算一个整数的各位数字之和,在下划线处应填写的语句是( )。

SET TALK OFF

INPUT "X=" TO X

S=0

DO WHILE X! =0

S=S+MOD(X, 10)

ENDDO

s

SET TALK ON

A.X=int(X/10)
B.X=int(X%10)
C.X=X-int(X/10)
D.X=X-int(X%10)