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ternary failed
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package main | |
import ( | |
"fmt" | |
) | |
func main() { | |
var foo = map[bool]string{true: "foo", false: "bar"}[true] | |
fmt.Println("Hello Go", foo) | |
var bar = map[bool]string{true: "foo", false: "bar"}[false] | |
fmt.Println("Hello Go", bar) | |
} | |
/* | |
Hello Go foo | |
Hello Go bar | |
Program exited. | |
*/ |
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package main | |
import ( | |
"fmt" | |
"os" | |
) | |
func sendCapture() string { | |
fmt.Println("Send Capture") | |
return "url" | |
} | |
func sendFile(filename string) string { | |
fmt.Println("Send File", filename) | |
return "url" | |
} | |
func main() { | |
var url = map[bool]string{true: sendCapture(), false: sendFile(os.Args[1])}[len(os.Args) == 1] | |
fmt.Println("Hello Go", url) | |
} | |
/* | |
1 | |
Send Capture | |
panic: runtime error: index out of range | |
goroutine 16 [running]: | |
runtime.panic(0x113be0, 0x1a39dc) | |
/tmp/sandbox/go/src/pkg/runtime/panic.c:279 +0x120 | |
main.main() | |
/tmpfs/gosandbox-992bfd34_3434ac75_ca326031_a55b9406_b94753c2/prog.go:20 +0x3a0 | |
goroutine 19 [runnable]: | |
runfinq() | |
/tmp/sandbox/go/src/pkg/runtime/mgc0.c:2606 | |
runtime.goexit() | |
/tmp/sandbox/go/src/pkg/runtime/proc.c:1445 | |
[process exited with non-zero status] | |
Program exited. | |
*/ |
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