VFP程序设计命令如何替换

因为xckm1、xckm2字段的数据类型一定以为数值型，而A+、A、B等为字符型，所以必须增加两个字符型的字段才行。分别设为：xckmdj1、xckmdj2。用下述命令替换：
repl xckmdj1 with “A+" for xckm1=6
repl xckmdj1 with “A" for xckm1=5
repl xckmdj1 with “B+" for xckm1=4
repl xckmdj1 with “B" for xckm1=3
repl xckmdj1 with “C" for xckm1=2
repl xckmdj1 with “D" for xckm1=1
repl xckmdj2 with “A+" for xckm2=6
repl xckmdj2 with “A" for xckm2=5
repl xckmdj2 with “B+" for xckm2=4
repl xckmdj2 with “B" for xckm2=3
repl xckmdj2 with “C" for xckm2=2
repl xckmdj2 with “D" for xckm2=1