Question

last_rows = df.Quantity.eq(grouping.transform("last"))

Xcode的输出：

df.loc[last_rows, "Result"] = first_div_last

df

    ID  Quantity    Time       Result
0   54  100 2020-01-01 00:00:05 NaN
1   54  87  2020-01-01 00:00:06 0.870
2   58  400 2020-01-01 00:00:08 NaN
3   58  390 2020-01-01 00:00:14 0.975

我已经完成了flutter pub get，完成pod安装，pod更新，flutter clean和flutter run的所有工作但是错误来了，我有扑扑，飞镖，可可足类的最新版本

Answer 1

转到iOS目录中的Podfile并更改ios版本

# Uncomment this line to define a global platform for your project
# platform :ios, '9.0' // you have to change this because firebase required 9 to 14

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

无法为模拟器构建应用程序

1 个答案: