根據Log表的data字段計算每個玩家的總得分
阿新 • • 發佈：2018-01-09
結果 from split clas lba 列表 ray c# 練習 需求：
線上數據庫的Log表的date字段記錄了每個玩家在每一局的分數，現為了比較“每一局的分數和”與“score”字段的結果是否一致，需要計算每個玩家在每一局的分數總和。
分析：
mysql> select data from log where deskid=967745\G *************************** 1. row *************************** data: -12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859;0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895;5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924;-29,22,7,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,4,1515466944,41515466944957;-2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989;-32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221;-7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,4151546707425;14,0,-14,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467126,4151546712649;-5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180;0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106; 1 row in set (0.04 sec)
由以上查詢結果可以看到，data字段將每一局的數據用“;”隔開。每一組數據的前三列（-12,26,-14,）代表了這一小局，三個玩家的分數。將每一組數據的第一列相加即為第一個玩家的總分數。
Linux Shell實現：
將data數據保存到變量data中：
# data='-12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859;0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895;5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924;-29,22,744,41515466944957;-2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989;-32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221;-7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,410,0,4,1515467126,4151546712649;-5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180;0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106' # echo $data -12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895 5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924 -29,22,744,41515466944957 -2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989 -32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221 -7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,410,0,4,1515467126,4151546712649 -5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180 0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106
將data變量中的內容保存到數組array中，並指定“;”為分隔符：
# array=($a) # IFS=';'
遍歷數組array，查看數組中的內容：
# for i in ${array[@]};do echo $i;done
-12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859
0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895
5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924
-29,22,7,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,4,1515466944,41515466944957
-2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989
-32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221
-7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,4151546707425
14,0,-14,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467126,4151546712649
-5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180
0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106求每個玩家的總分數：
# for i in ${array[@]};do echo $i;done | awk -F ',' '{sum+=$1} END{print sum}'
-68
# for i in ${array[@]};do echo $i;done | awk -F ',' '{sum+=$2} END{print sum}'
47
# for i in ${array[@]};do echo $i;done | awk -F ',' '{sum+=$3} END{print sum}'
21Python實現：
將data數據保存到變量data中：
In [1]: data = '-12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859;0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895;5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924;-29,22,7,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0, ...: 4,1515466944,41515466944957;-2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989;-32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221;-7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,4151546707425;14,0,-14,0,1,0,0,0,0, ...: 0,0,0,0,0,0,0,0,0,0,0,4,1515467126,4151546712649;-5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180;0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106'
根據“;”將字符串data拆分，遍歷拆分後的列表：
In [2]: for line in data.split(';'):
...: print(line)
...:
-12,26,-14,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466757,41515466757859
0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466827,41515466827895
5,-3,-2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466885,41515466885924
-29,22,7,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,4,1515466944,41515466944957
-2,10,-8,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515466994,41515466994989
-32,-11,43,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467022,415154670221
-7,17,-10,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467074,4151546707425
14,0,-14,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467126,4151546712649
-5,-3,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467191,4151546719180
0,-11,11,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,4,1515467249,41515467249106求第一個玩家的總分數：
In [3]: score1 = 0
In [4]: for line in data.split(';'):
...: score1_tmp = line.split(',')[0]
...: if score1_tmp:
...: score1 += int(score1_tmp)
...: print(score1)
...:
-68PS：
現階段正在自學Python，但是線上業務並沒有用到。只好將Shell實現的功能，用Python再實現一遍，以做練習。
根據Log表的data字段計算每個玩家的總得分