43 lines
1007 B
Markdown
43 lines
1007 B
Markdown
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---
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title: do while loop
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localeTitle: 做循环
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---
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## 做循环
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`do while loop`几乎与while循环相同。 `do while loop`具有以下形式：
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```cpp
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do
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{
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// do something;
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} while(expression);
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```
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注意：请记住使用分号';'在条件结束时。
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## 有关do-while循环的详细信息
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只要您确定必须至少执行一次特定进程（在循环内），就会使用do-while循环。它具有许多优点，例如不初始化检查变量（例如，char addmore ='Y'）等。在结束时分号是必须的。
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先做一些事情，然后测试我们是否必须继续。结果是do块至少运行一次。 （因为表达测试后来）。看一个例子：
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```cpp
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#include <iostream>
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using namespace std;
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int main()
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{
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int counter, howmuch;
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cin >> howmuch;
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counter = 0;
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do
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{
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counter++;
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cout << counter << '\n';
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}
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while ( counter < howmuch);
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return 0;
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}
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```
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