1、添加时间工具关键字

2、调整部分错误

02-Keyword/tsg_bfapi/CommonUtil.robot

@@ -0,0 +1,15 @@
+*** Settings ***
+Resource          ../../03-Variable/BifangApiVariable.txt
+Library           DateTime
+Library           String 
+#Library           Collections
+#Library           RequestsLibrary
+
+*** Keywords ***
+GetLast24HoursStartAndEndTime
+    [Documentation]
+    ...    获取当前时间往前一天的开始结束时间，时间格式为：YYY-MM-DD H24:mm:ss  
+    ${endtime}    Get Time    
+    ${starttime}=    Add Time To Date    ${endtime}    -1 days 
+    ${starttime}    Get Substring    ${starttime}    0    19  
+    [Return]    ${starttime}    ${endtime}