0a1eeea424
* fix: replace sh with shell fix replace terminal with shell fix replace node with js fix replace output with shell fix replace cs with csharp fix replace c++ with cpp fix replace c# with csharp fix replace javasctipt with js fix replace syntax with js fix replace unix with shell fix replace linux with shell fix replace java 8 with java fix replace swift4 with swift fix replace react.js with jsx fix replace javascriot with js fix replace javacsript with js fix replace c++ - with cpp fix: corrected various typos fix: replace Algorithm with nothing fix: replace xaml with xml fix: replace solidity with nothing fix: replace c++ with cpp fix: replace txt with shell fix: replace code with json and css fix: replace console with shell
37 lines
777 B
Markdown
37 lines
777 B
Markdown
---
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title: While-loop
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localeTitle: undefined
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---
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只要给定条件为真，while循环语句就会重复执行目标语句。
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句法： while（condition）{ 声明（S）; }
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while循环的一个关键点是循环可能永远不会运行。 当测试条件并且结果为假时，将跳过循环体并且将执行while循环之后的第一个语句。
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例：
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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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// Local variable declaration:
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int a = 10;
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// while loop execution
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while( a < 20 ) {
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cout << "value of a: " << a << endl;
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a++;
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}
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return 0;
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}
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```
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输出：
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价值：10 价值：11 价值：12 价值a：13 a的值：14 价值a：15 价值：16 价值：17 价值：18 价值：19
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### 来源
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www.tutorialspoint.com |