Question

asp.net截取字符串

"50":{"package_code":37,"package":"50","price":"42.00"},
"100":{"package_code":38,"package":"100","price":"84.00"},
"150":{"package_code":39,"package":"150","price":"126.00"},
"110":{"package_code":38,"package":"100","price":"84.00"},
"120":{"package_code":39,"package":"150","price":"126.00"},
把"50":，"100":，"150":，"110":，"120":全部替换成“”，就是删除这几个字符串，把字符串中的字段 {"package_code" 的上一个 , 与 {"package_code" 之间的所有字段替换成“”；

Answer 1

string str="adcdef";
int indexStart = str.IndexOf("d");
int endIndex =str.IndexOf("e");

string toStr = str.SubString(indexStart,endIndex-indexStart);

搜索单词在字符串索引位置，然后再查找即可