split和replace问题在线等

Question

chklist1.Items[Convert.ToInt32(lblFirstEnjoy.Text.Split(',')[0])].Text;
lblFirstEnjoy.Text=lblFirstEnjoy.Text.Replace(index+",","");其中lblFirstEnjoy是label控件，chklist1是CheckBoxList控件
Replace(index+",","")和Replace(index+",","")是什么意思搞不清楚
可以详细点吗

Answer 1

lblFirstEnjoy.Text.Split(',')[0]的意思是lblFirstEnjoy.Text中第一个','之前的字符串lblFirstEnjoy.Text.Replace(index+",","")
的意思是把lblFirstEnjoy.Text中所有的字符串“index+","”删除

Answer 2

lblFirstEnjoy.Text.Split(',')[0]的意思是lblFirstEnjoy.Text中第一个','之前的字符串
有什么功能吗？

Answer 3

对
但是后面index+是不是楼主转得有问题？少说应该是个","吧

Answer 4

chklist1.Items[Convert.ToInt32(lblFirstEnjoy.Text.Split(',')[0])].Text;lblFirstEnjoy.Text=lblFirstEnjoy.Text.Replace(index+",","");
-------------------------------------------------------------假设:
lblFirstEnjoy的内容是: "2,4,1"
chklist1的内容是:
北京
上海
南京
重庆
天津则:
lblFirstEnjoy.Text.Split(',')[0] 是第一个','之前的内容, 也就是: "2",
Convert.ToInt32() 把"2"转换成int,
chklist1.Items[2].Text 是chklist1的第3项: "南京".lblFirstEnjoy.Text=lblFirstEnjoy.Text.Replace(index+",","");
就是把 "2,4,1" 中的 "2,"替换成 "", 也就是把lblFirstEnjoy的内容变成了: "4,1"如此重复, 依次取到: "南京", "天津", "上海"

Answer 5

Replace是替换，而split是筛选！