su定义的时候，使用了两种数据类型
int void main() //两个返回值，改成int main()或者void main()
你这个main函数中又定义其余函数了，这个是C和C++不允许的。
two or more data types in declaration of `函数名' 有一种情况最容易出现这样的错误,那就是在你的程序里少了个“;”号。 他有可能在你的头文件里,也有可能在本文件中(最容易出错的是结构体忘“;”)。
int i 写在for里面去看看呢。
two or more data types in declaration of `main' #include<iostream> #pragmapack(8) usingstd::cout; usingstd::endl; structexample1 { shorta; longb; } structexample2 { charc; example1 struct1; shorte; } #pragmapack() intmain()
Hence the error: two or more data types in declaration specifiers as there are 2 types byte char = Can you use a different variable name and try: for _, char in arg.reverse() { println(char) } to for _, c in arg.reverse() { println(c) } This should work in the future, ...
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[ 0%] Building C object lib/CMakeFiles/libcurl.dir/file.c.o In file included from /work/lib/curl_setup.h:59:0, from /work/lib/file.c:23: /work/build/lib/curl_config.h:1008:17: error: two or more data types in declaration specifiers #define ssize_t long ...
Our experimental platform consists of two types of spin defects in nitrogen delta-doped diamond: nitrogen-vacancy colour centres, which we use as probe spins, and a many-body ensemble of substitutional nitrogen impurities. We demonstrate that the many-body system’s dimensionality, dynamics and ...