c语言,怎么做出这个圣诞树?求写代码拍下来,必采纳答:str,\n 代表换行。代码:include <stdio.h>int main(){printf("%5s\n","O");printf("%6s\n","OOO");printf("%7s\n","OOOOO");printf("%6s\n","OOO");printf("%8s\n","OOOOOOO");printf("%9s\n","OOOOOOOOO");printf("%5s\n","O");printf("%5s\n",...