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C Crash Course/16 Sturcture&Union&Enum/stucture/prelesson/stucture-as-func-parameter/readme.md
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#### 结构体作为函数参数
## 结构体作为函数参数
**明天的日期**
*写一个程序:输入今天的日期,求明天的日期*
看着这个问题简单,实际上稍微有点技巧.
给出下面四个特殊日期,大家可以思考一下:
>2020 - 1 -31
>2020 - 11 - 31
>2020 - 12 - 31
>2000 - 2 - 28
#### Use sturcture itself as a function's parameter
2020 - 11 - 31
2020 - 12 - 31
2000 - 2 - 28
## Use sturcture itself as a function's parameter
it's not an efficient way
>K & R said （p.131 ）
>"if a large structure is to be passed to a function,
>in is generally more efficent to pass a pointer than to copy the whole structure"
>in is generally more efficent to pass a pointer than to copy the whole structure"