【背景】
折腾：
期间，需要用到字符串变量。
【解决过程】
1.参考：
去试试：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | package mainimport ( "fmt" "log" "io/ioutil" "http")func main() { fmt.Printf("this is EmulateLoginBaidu.go\n") fmt.Printf(baiduMainUrl)} |
结果是出错了：
【已解决】go语言运行出错：EmulateLoginBaidu.go:7:5: cannot find package "http" in any of
2.解决后，代码变为：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | package mainimport ( "fmt" "log" "io/ioutil" "net/http")func main() { fmt.Printf("this is EmulateLoginBaidu.go\n") fmt.Printf(baiduMainUrl)} |
错误变成了：
1 2 3 4 5 6 7 8 9 10 | D:\tmp\tmp_dev_root\go\src\github.com\user\EmulateLoginBaidu>go run EmulateLoginBaidu.go# command-line-arguments.\EmulateLoginBaidu.go:5: imported and not used: "log".\EmulateLoginBaidu.go:6: imported and not used: "io/ioutil".\EmulateLoginBaidu.go:12: undefined: baiduMainUrl.\EmulateLoginBaidu.go:12: cannot assign to baiduMainUrl.\EmulateLoginBaidu.go:13: undefined: baiduMainUrl.\EmulateLoginBaidu.go:14: assignment count mismatch: 3 = 2D:\tmp\tmp_dev_root\go\src\github.com\user\EmulateLoginBaidu> |
很明显，此处的字符串变量baiduMainUrl是非法的。
3.所以再去改为：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | package mainimport ( "fmt" "log" "io/ioutil" "net/http")func main() { fmt.Printf("this is EmulateLoginBaidu.go\n") var baiduMainUrl string fmt.Printf(baiduMainUrl)} |
结果是
1 2 3 4 5 | D:\tmp\tmp_dev_root\go\src\github.com\user\EmulateLoginBaidu>go run EmulateLoginBaidu.go# command-line-arguments.\EmulateLoginBaidu.go:5: imported and not used: "log".\EmulateLoginBaidu.go:6: imported and not used: "io/ioutil".\EmulateLoginBaidu.go:16: assignment count mismatch: 3 = 2 |
4.再去参考：
改为：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | package mainimport ( "fmt" "log" "io/ioutil" "net/http")func main() { fmt.Printf("this is EmulateLoginBaidu.go\n") var baiduMainUrl string fmt.Printf(baiduMainUrl) //res, _, err := http.Get("http://bbs.golang-china.org/")} |
结果是：
1 2 3 4 | D:\tmp\tmp_dev_root\go\src\github.com\user\EmulateLoginBaidu>go run EmulateLoginBaidu.go# command-line-arguments.\EmulateLoginBaidu.go:5: imported and not used: "log".\EmulateLoginBaidu.go:6: imported and not used: "io/ioutil" |
5.即没有了错误了，但是却没运行出来结果。
参考：
去改为：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | package mainimport ( "fmt" "log" "io/ioutil" "net/http")func main() { fmt.Printf("this is EmulateLoginBaidu.go\n") var baiduMainUrl string //baiduMainUrl = "http://www.baidu.com/"; fmt.Printf("baiduMainUrl=%s\n", baiduMainUrl) //res, _, err := http.Get("http://bbs.golang-china.org/")} |
结果是：
1 2 3 4 5 | D:\tmp\tmp_dev_root\go\src\github.com\user\EmulateLoginBaidu>go run EmulateLoginBaidu.go# command-line-arguments.\EmulateLoginBaidu.go:5: imported and not used: "log".\EmulateLoginBaidu.go:6: imported and not used: "io/ioutil".\EmulateLoginBaidu.go:15: no new variables on left side of := |
6.对于imported and not used的错误，详见：
【已解决】go语言编译运行出错：imported and not used: "log"
【总结】
至此，至少先确保了：
可以通过：
1 |
方式，去初始化一个字符串值，并且赋值的。
转载请注明：在路上 » 【已解决】go语言中的字符串