摘要：
usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespaceLinq_1{classProgram{staticvoidMain(string[]args){varstudentQuery6=fromstudentinstudentslettotalScore=student.Scores[0]+student.Scores[1]+student.Scores[2]+student.Scores[3]selecttotalScore;doubleaverageScore=stude 阅读全文
摘要：
刚刚开始学习。 阅读全文