C++核心准则ES.72:如果存在明显的循环变量，for语句要好于while语句

ES.72: Prefer a for-statement to a while-statement when there is an obvious loop variable

ES.72:如果存在明显的循环变量，for语句要好于while语句

Reason（原因）

Readability: the complete logic of the loop is visible "up front". The scope of the loop variable can be limited.

可读性：循环的全部逻辑都放在前台可以直接看到。循环变量的作用域可以被限定在循环之内。

Example（示例）

for (gsl::index i = 0; i < vec.size(); i++) {
    // do work
}

Example, bad（反面示例）

int i = 0;
while (i < vec.size()) {
    // do work
    i++;
}

Enforcement（实施建议）

???

原文链接

https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es72-prefer-a-for-statement-to-a-while-statement-when-there-is-an-obvious-loop-variable