搭建Grafana+Prometheus 監(jiān)控mysql

Grafana+Prometheus 系統(tǒng)監(jiān)控MySql

```

#功能函數

defadd(x,y):

returnx+y

#裝飾函數

deflogger(fn):

print('frist')

x?=?fn(4,5)

print('second')

returnx

print(logger(add))

#把函數add傳給logger??，return?x+y

#print('frist')

#print('secend')

#??x?=?fn(4,5)??==>?x?=?4?y=?5??x=?4+5?=?9?

#return?9?

frist

second

9

```