大佬们,为什么我的数据可视化图形出不来?
from flask import Flask,render_template
app = Flask(__name__)
fb = open(r'过滤后的mysql.csv', encoding='utf-8')
data = fb.readlines()
line = data[0].split(',')
# print(line)
print(line[3], line[4], line[13], line[17], "出租率")
cityMap = {}
for i in data[1:]:
sum1 = i.split(",")
province = sum1[3]
city = sum1[4]
sum2 = sum1[13]
shouchu = sum1[17]
bilv = int(shouchu) / int(sum2)
if province+city in cityMap:
cityList = cityMap[province+city]
cityList[0] = cityList[0] + 1
cityList[1] = cityList[1] + bilv
cityMap[province+city] = cityList
else:
cityMap[province+city] = [1, bilv]
# print(cityMap)
# print(type(cityMap))
ccc = {}
for i in cityMap:
sum = cityMap[i][1] / cityMap[i][0]
ccc[i] = round(sum,2)
# print(ccc)
list1 = list(ccc.items())
# print(list1)
bbb = dict(sorted(list1,key=lambda x:x[1],reverse=True)) # 降序排序
list2 = list(bbb.items())[:10] # 取前10
# bbb
aaa = dict(list2)
# print(aaa)
@app.route('/')
def hello_world():
return render_template("hello.html",cityMap = aaa)
if __name__ == '__main__':
app.run()<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>招聘数量最多的前十个热门职位</title>
<script src="./echarts.js"></script>
</head>
<body>
<div id="s" style="width: 800px;height: 600px;"></div>
<script>
var myChart=echarts.init(document.getElementById('s'));
var option={
color:['rgb(207,65,48)'],
title:{
text:'招聘数量最多的前十个热门职位',
subtext:'柱状图',
left:'center'
},
tooltip:{
trigger:"axis",
axisPointer:{
type: 'shadow'
}
},
xAxis:{
type:'category',
axisLabel:{
interval:0,//横轴信息全部显示
rotate:30,//-15度角倾斜显示
},
data:[
{%for key,value in cityMap.items()%}
'{{key}}',
{% endfor %}
]
},
yAxis:{
type:'value'
},
series:{
type:'bar',
barWidth:'60%',
data:[
{%for key,value in cityMap.items()%}'{{ value }}',{%endfor%}
]
},
};
myChart.setOption(option);
</script>
</body>
</html>这是网页出现的,为什么这样
重点检查hello.html看看
45行改为，可以看到错误信息
app.run(debug=True)
#or
app.debug = True