lijie:

import std.stdio;
void main() {
void delegate()[] functions;
foreach (i; 0 .. 5) {
functions ~= {
printf("%d\n", i);
};

}

foreach (func; functions) {
func();
}
}

import std.stdio;

void main() {
void delegate()[] functions;

foreach (i; 0 .. 5)
functions ~= ((int j) => { printf("%d\n", j); })(i);

foreach (func; functions)
func();
}

Thanks bearophile.

Best regards,

-- Li Jie