UC知道reverse(perl)
来源：百度知道 编辑：UC知道 时间：2024/09/22 20:31:53
请看下面的程序：
#!/usr/bin/perl -w
@words="Can you speak in english?";
@dingxin=reverse(@words);
print @dingxin, "\n";
我觉得输出应该是?english in speak you can
可运行后是Can you speak in english? 请问是为什么？
#!/usr/bin/perl -w
@words="Can you speak in english?";
@dingxin=reverse(@words);
print @dingxin, "\n";
我觉得输出应该是?english in speak you can
可运行后是Can you speak in english? 请问是为什么？
请注意数组赋值的方式。
源程序：@words="Can you speak in english?";
建议 ：@words=("Can","you","speak","in","english","?");
你没有明白reverse的用法，它是反转数组的。而你定义的数组里面只有一个元素，那就是"Can you speak in english?"。
要达到你要的效果，可以用：
@words=("Can ","you ","speak ","in ","english ","?");
也可以：
push(@words,"Can ");
push(@words,"You ");
push(@words,"speak ");
push(@words,"in ");
push(@words,"enlish ");
push(@words,"?");
你要根据实际需要来考虑用什么样的格式