string.txt

一个小型脚本语言解释器源代码,来自老外内附英文说明和演示脚本例子

BEGIN
V avar #
V bvar #
V cvar #
P $N Enter value of avar = $S <<
I avar
P $N Enter value of bvar = $S <<
I bvar
S cvar = avar
S avar = bvar
S bvar = cvar
P $N Now value of avar is = $S <<
PV avar
P $N Now value of bvar is = $S <<
PV bvar
PSE
END
; and this is a comment