我有两个像这样的数组：
var arrayA = ["Mike","James","Stacey","Steve"] var arrayB = ["Steve","Gemma","Lucy"]
如你所见,詹姆斯和史蒂夫匹配,我希望能够从arrayA中删除它们.我怎么写这个？
喜欢这个：
var arrayA = ["Mike","Lucy"]
for word in arrayB {
if let ix = find(arrayA,word) {
arrayA.removeAtIndex(ix)
}
}
// now arrayA is ["Mike","Stacey"]
