我正在对初级(也许是高级)软件工程师所犯的常见错误和错误假设进行一些研究。
你坚持时间最长、最终被纠正的假设是什么?
例如，我误解了整数的大小不是标准的，而是取决于语言和目标。说起来有点尴尬，但事实就是这样。
坦率地说;你有什么坚定的信念?你大概坚持了多长时间?它可以是关于一种算法、一种语言、一个编程概念、测试，或者任何关于编程、编程语言或计算机科学的东西。
当前回答
当我在TI-83上编程时，我认为你不能给变量赋值。因此(忽略这是C代码，不是TI-BASIC)而不是编写
c = c + 1;
我会写
d = c + 1;
c = d;
当我学习+=和++时，我惊呆了。
其他回答
分析和性能分析是一回事。
然后我发现，虽然分析器总比没有强，但它包含错误的假设，比如:
只有总量才重要，细节无关紧要 统计精度是定位性能问题的必要条件 测量时间和定位不必要的耗时操作是一回事
我喜欢编程。通过研究SICP的书，我发现我一无所知。至少现在我更深入地研究编程了。
我想说的是，将日期的year元素存储为2位数字是一种困扰整个一代开发人员的假设。在千年虫问题上浪费的钱是相当可怕的。
我一直认为，任何为任何语言编写任何代码的人都会使用编辑程序。
I was working with a client of mine who had me on mostly as support and to write some of the more complex things for him. Well one day he messed up a file, big time. He accidentally saved over three hours worth of his own work, and when I asked him why he didn't save more often he replied with, "because I wasn't done". Naturally, this was not an acceptable answer, and I poked and prodded a little further. I eventually came to find out that he he has never used any editing program, EVER! Not even notepad.exe! He had been using an online CPanel editor for files! It didn't even have a 'Find' function. He couldn't ever save until he was done because he was editing the live file on the site!
不用说，我很惊讶，他至今仍在使用CPanel编辑器……
以前从未见过整数提升… 并认为'z'在这段代码中可以容纳255:
unsigned char x = 1;
unsigned char y = 2;
unsigned char z = abs(x - y);
z的正确值是1
