关于栈的内容，不能理解的一个地方。本帖最后由 u013363978 于 2014-01-03 18:41:41 编辑#include stdio.h
关于栈的内容，不能理解的一个地方。
本帖最后由 u013363978 于 2014-01-03 18:41:41 编辑
#include <stdio.h>
void singTheSong(int numberOfBottles)
{
if(numberOfBottles == 0)
{
printf("There are simply no more bottles of beer on the wall\n.");
}else{
printf("%d bottles . %d bootles of beer.\n",numberOfBottles,numberOfBottles);
int oneFewer = numberOfBottles - 1;
printf("Take, p, %d bottles of beer on the wall.\n",oneFewer);
singTheSong(oneFewer);
printf("Put a bottle, %d empty bottles in the bin.\n",numberOfBottles);
}
}
int main(int argc, const char * argv[])
{
singTheSong(9);
return 0;
}
结果是这样的
3 bottles of beer on the wall. 3 bootles of beer.
Take one down, pass it around, 2 bottles of beer on the wall.
2 bottles of beer on the wall. 2 bootles of beer.
Take one down, pass it around, 1 bottles of beer on the wall.
1 bottles of beer on the wall. 1 bootles of beer.
Take one down, pass it around, 0 bottles of beer on the wall.
There are simply no more bottles of beer on the wall
.Put a bottle in the recycling, 1 empty bottles in the bin.
Put a bottle in the recycling, 2 empty bottles in the bin.
Put a bottle in the recycling, 3 empty bottles in the bin.
对于后面这个最后的三句输出的变量哪里来的自增 不理解
小弟自学的请各位大哥谅解
[解决办法]这是递归，singTheSong一个个返回时，走的printf("Put a bottle,
学习编程，最好先学会单步调试
[解决办法]你这个递归调用了调用是3->2->1，然后打印顺序就是1->2->3了。楼主可以单步跟踪一下就明白了。
就是你的这段代码：
int oneFewer = numberOfBottles - 1;
printf("Take, p, %d bottles of beer on the wall.\n",oneFewer);
singTheSong(oneFewer);
printf("Put a bottle, %d empty bottles in the bin.\n",numberOfBottles);
