记录一次比较无语的语法错误 - "error: ‘ostream’ has not been declared"
记录一个让笔者有点无语的语法错误 debug 过程... 1.晚上使用 VScode 写代码,编译时出现如下报错信息 "error: ‘ostream’ has not been declared".编译无法通过. 2.产生上述报错时,源文件中包含了头文件 ...
原文：Qt error ------ 'XXX' has not been declared
头文件没加 调用函数者的头文件在XXX头文件的下方 ...
2018-03-15 10:52 0 2158 推荐指数：
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