【python】散点图，读取excel数据，xlrd

读取excel数据，使用xlrd制作散点图。

import matplotlib.pyplot as plt 
import xlrd

data = xlrd.open_workbook('测试3.xlsx') # 读取工作表
table = data.sheet_by_name('Sheet1') # 读取当前sheet表对象
rows = table.nrows # 获取行数
nianlist = []
citylist = []
salarylist = []
print('一共有{}行数据'.format(rows))
for i in range(1,rows):
    salary = table.row_values(i)[3]
    nian = table.row_values(i)[6]
    city = table.row_values(i)[8]
    nianlist.append(nian)
    citylist.append(city)
    salarylist.append(salary)
plt.scatter(citylist, salarylist, s=10) 
plt.show()