fmt.Scanf 在 Go 中无法正常工作

Question

我正在尝试一个应该测试 fmt.Scanf 的片段，但它似乎没有按预期工作：package mainimport (    "fmt"    "time")func main() {    fmt.Println("What is your favorite color?")    var favoriteColor string    fmt.Scanf("%s", &favoriteColor)    fmt.Println("Fave color is", favoriteColor)    fmt.Println("What is your favorite food?")    var myfood string    fmt.Scanf("%s", &myfood)    fmt.Printf("I like %s too!\n", myfood)    fmt.Printf("Wait two seconds please...\n")    time.Sleep(2000 * time.Millisecond)    fmt.Printf("Your favorite color is %s, and the food you like best is %q\n", favoriteColor, myfood)}然而只接受第一个答案，程序继续到最后然后返回：What is your favorite color?redFave color is redWhat is your favorite food?I like  too!Wait two seconds please...Your favorite color is red, and the food you like best is ""为什么第二个 scanf 函数被忽略？这对我来说毫无意义。我在 Windows 7 上使用最新的 64 位软件包安装了 Go。

Answer 1

把 a 放在\n后面，%s这样它就会消耗你输入的换行符。否则换行进入下一次扫描。