select CAST(YTD_CHANGE*100 as decimal(18,1)), round(YTD_CHANGE*100,1)
from RP where data_date 20211231补零
round(PYTD_CHANGE_PER*100,1)不补零
CAST(PYTD_CHANGE_PER*100 as decimal(18,1))
Spring 1.Spring的含义:
Spring 可从狭义与广义两个角度看待
狭义的 Spring 是指 Spring 框架(Spring Fremework)
广义的 Spring 是指 Spring 生态体系
2.狭义的 Spring 框架
Spring 框架是企业开发复杂性的一站式解决方案
Spring 框架的核心是 IoC 容器和 AO…
import pandas as pd
import numpy as np
import os
basepath/Users/kangyongqing/Documents/kangyq/202307/标准版学期制C2/pathos.path.join(basepath,02freetime.csv)
dtpd.read_csv(path,dtype{shifen:object})
print(dt.head())
import matplotlib.pyplot as pltfor i in …