C++ 關鍵字: for
來自 cppreference.com
[編輯] 用法
- for 迴圈: 作為迴圈的宣告
|
(C++11 起) |
[編輯] 示例
執行此程式碼
#include <iostream> int main() noexcept { // The following 'for' loop statement: // 1. (init-statement) Declares an integer named 'i' and initializes it with value '0'. // 2. (condition) Checks if i is less than 3 and if not, ends the loop execution. // 3. (statement) Writes out a current value of the integer 'i' to the stdout. // 4. (expression) Pre-increments the integer 'i' (increases its value by 1). // 5. Returns to the point 2 (condition). // init-statement: int i{0}; // condition: i < 3 for (int i{0}; i < 3; ++i) // expression: ++i std::cout << i; // statement: std::cout << i; }
輸出
012
[編輯] 參閱
|
(C++17 起) |
|
(C++23 起) |
- switch 語句:
switch,case - default (作為 case 標籤宣告) 等:
default - goto 語句:
goto - continue 語句:
continue - break 語句:
break - return 語句:
return
| (C++20 起) |
