del
1. 基本語法
del(key[, key, ...] , callback)
key[, key, ...] , callback) 刪除給定的key所對應的資料,並回傳成功刪除的key數量。
2. 範例
client.set("foo", "bar", redis.print)
client.del("foo", redis.print)
client.get("foo", redis.print)Reply: OK
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