Question

这是数据框：

     State  RegionName            
0    NY     New York             
1    CA     Los Angeles      
2    IL     Chicago 865         
3    PA     Philadelphia Wrin   
4    AZ     Phoenix City

我希望输出看起来像这样：

     State   RegionName           
0    NY      New             
1    CA      Los         
2    IL      Chicago            
3    PA      Philadelphia 
4    AZ      Phoenix

不使用for循环怎么做？

Answer 1

通过索引将mouseY用于选择第一个值：

edefine("custom/handlers/customChangeColorHandler", 
   [ "dojo/_base/declare",       
     "platform/ui/layout/_LayoutWidgetBase",
     "dojo/_base/array",
     "dojo/_base/lang",
     "dojo/on",
     "dojo/dom-construct",
     "dojo/dom-attr",
     "dojo/dom-class"],
function (declare, array, on, domConstruct, domAttr, domClass){
return ( ColorHandler){
changeWorkLogColor : function(eventContext){
                    var currentWO = CommonHandler._getAdditionalResource(eventContext,'workOrder').getCurrentRecord();
                    var worklogcount = currentWO.get("workloglistsize");                        
                    if (worklogcount){

                        eventContext.textWidget.domNode.className+= ' red-text';                            

                    }else{

                        eventContext.textWidget.domNode.className+= ' relatedRecords';                          
                    }

                },
  });

Answer 2

这是使用pd.Series.str.extract

的替代方法

df['RegionName'] = df['RegionName'].str.extract(r'(.*)\s')

但是我的第一个直觉是使用@jezrael提到的内容。

Regex demo

Answer 3

您还可以<form name="reloadForm"> <button type="submit"> Continue </button> </form> <script> document.reloadForm.submit() ; </script>字符串的开头，但使用正则表达式排除空格str.extract

^[^\s]+

Answer 4

您可以使用str.replace用start_range = int(input("Enter the starting number: ")) end_range = int(input("Enter the ending number: ")) #find favourite numbers def find_favourite_numbers(start_range,end_range): fav_numbers = [70, 105, 140] for start_range and end_range in range(fav_numbers): if fav_numbers[0,1,2] >= start_range and fav_number <= end_range: print(fav_numbers) else: print("favourite numbers not in range") print(fav_numbers) return fav_numbers #Do not remove the next line find_favourite_numbers(start_range,end_range)替换多余的单词

''

删除熊猫数据框中第一个空格之后的所有内容

4 个答案: