如果使用新的应用程序生命周期，是否可以更改状态栏颜色？
我知道在UIKit生命周期中，有一种解决方法，您可以创建自己的<?xml version="1.0" encoding="UTF-8"?>
<response><action>upload/simple</action><doupload><result>-99</result><key/></doupload><server>live</server><message>Upload Failed</message><error>169</error><result>Error</result><current_api_version>1.5</current_api_version></response>
Verbose information:
<pre>* Hostname www.mediafire.com was found in DNS cache
* Trying 104.16.203.237...
* TCP_NODELAY set
* Connected to www.mediafire.com (104.16.203.237) port 443 (#0)
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use http/1.1
* Server certificate:
* subject: OU=Domain Control Validated; OU=PositiveSSL Wildcard; CN=*.mediafire.com
* start date: Oct 11 00:00:00 2019 GMT
* expire date: Nov 7 23:59:59 2021 GMT
* issuer: C=GB; ST=Greater Manchester; L=Salford; O=Sectigo Limited; CN=Sectigo RSA Domain Validation Secure Server CA
* SSL certificate verify ok.
> POST /api/1.4/upload/simple.php HTTP/1.1
Host: www.mediafire.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0
Accept: */*
Content-Length: 109318
Content-Type: multipart/form-data; boundary=------------------------ecad9fcf525ebcf4
Expect: 100-continue
< HTTP/1.1 100 Continue
< HTTP/1.1 200 OK
< Date: Thu, 17 Sep 2020 19:41:20 GMT
< Content-Type: application/xml
< Content-Length: 277
< Connection: keep-alive
< Set-Cookie: __cfduid=d2c1754d04c97642241e52ec36267fbb51600371679; expires=Sat, 17-Oct-20 19:41:19 GMT; path=/; domain=.mediafire.com; HttpOnly; SameSite=Lax
< Access-Control-Allow-Origin: *
< CF-Cache-Status: DYNAMIC
< cf-request-id: 053f2ef79f0000d25e1698a200000001
< Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
< Server: cloudflare
< CF-RAY: 5d454dd29d2ad25e-DFW
<
* Connection #0 to host www.mediafire.com left intact
</pre>
来覆盖颜色。
但是新的SwiftUI生命周期根本没有使用HostingController。
答案 0 :(得分：1)
这是一个可能的解决方法：
df[0].groupby(df.groupby(df[1]).cumcount()).sum()
我注意到了两个缺点：
0 3.68
1 2.79
2 3.83
Name: 0, dtype: float64
中切换-当您看到以前的样式时，可能会瞬间拍下df[0].values.reshape(df[1].max(),-1).sum(0)
# out
# array([3.68, 2.79, 3.83])
将在开始时创建两次