搜索 - 科创

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想自制一个单片机下载线~~问那个几条导线连在一起，用下载头和排针相连的东东学名叫什么 ~~qq:386430994--补上答案：排线

写了一个程序，每当运行到第三次getstr()这个函数时总会报错（崩溃），具体位置是str2=“000”;这一句。请问这是为什么？以及我应该如何解决？编译器vs2012源代码下面发上来

想做一个正负输出的直流电源，功率30W左右。具体是输入12V，输出依次为+15v、0v、-5V。不太想用变压器，不知道有没有比较好的方案。各位大神如果有好方案透露下吧！

文件下载

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你在 {{ downloadTime }} 下载过当前文件。

文件名称：{{ resource.defaultFile.name }}

下载次数：{{ resource.hits }}

上传用户：{{ uploader.username }}

所需积分：{{ costScores }}，{{ holdScores }}下载当前附件免费{{ description }}

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{{f.startingTime}}点 - {{f.endTime}}点	{{f.fileCount}}

约找到 10000 条结果，耗时 0.232 秒

当前账号的附件下载数量限制如下：