weixin_55408921的博客

panic和defer recover联合使用可以很好的捕获错误信息 捕获错误后不会导致主函数的终止，可以让程序继续运行 recover只能捕获当前函数的错误，不能跨函数进行捕获

从结果集中取出某一列的值组装成新的数组 package main import ( "fmt" ) func main() { data := []map[string]string{ {"name":"z","age":"18","sex":"nan"}, {"name":"l","age":"19","sex":"nv"}, {"name":"x","age":"20","sex":"nan"}, {"name":"g","age":"18","sex":"nv"}, }