‘for’ loop initial declarations are only allowed in C99 mode
#include <stdio.h>
int main(){
for(int i=0;i<10;i++){
printf("\n%d",i);
}
return 0;
}
linux 使用 gcc 进行编译时报
‘for’ loop initial declarations are only allowed in C99 mode
原因是要在 for() 外面 初始化 i 变量
#include <stdio.h>
int main(){
int i = 0;
for(i=0;i<10;i++){
printf("\n%d",i);
}
return 0;
}
编译通过
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