data structure assignment problem record

Question1: Similar to pause command in linux

read -n 1

Question2 read : Illegal option -n

原因为ubuntu 默认的是dash 不是 bash

Reference

Question3: How to Compile C programing Language

gcc hello.c -o hello

Question4: Segmentation fault (core dumped)

编译正常执行错误，在linux中使用 strace 查看具体报错。

Reference