{"id":91387,"date":"2020-05-02T04:38:06","date_gmt":"2020-05-01T20:38:06","guid":{"rendered":"http:\/\/4563.org\/?p=91387"},"modified":"2020-05-02T04:38:06","modified_gmt":"2020-05-01T20:38:06","slug":"%e5%8d%8f%e7%a8%8b%e6%89%a7%e8%a1%8c%e9%97%ae%e9%a2%98%e8%af%b7%e6%95%99","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=91387","title":{"rendered":"\u534f\u7a0b\u6267\u884c\u95ee\u9898\u8bf7\u6559"},"content":{"rendered":"
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\u534f\u7a0b\u6267\u884c\u95ee\u9898\u8bf7\u6559 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : davidyanxw <\/span> <\/i> 19<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
package main<\/p>\n

import (
“fmt”
“time”
)<\/p>\n

var x = 0<\/p>\n

func main() {
var num = 123
var p = &num
c := make(chan int)
go func() {
c <- *p + x \/\/ 1. \u8fd4\u56de 123
\/\/ c <- *p \/\/ 2. \u8fd4\u56de 789
}()
time.Sleep(time.Second)
num = 789
fmt.Println(<-c)<\/p>\n

}<\/p>\n

\u5b50\u534f\u7a0b\uff0c\u6267\u884c 1 \u8fd4\u56de 123\uff0c\u6267\u884c 2 \u8fd4\u56de 789
\u6ca1\u770b\u51fa\u6765\u6709\u4ec0\u4e48\u5dee\u522b\u554a\uff1f <\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (10<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : kaifang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u533a\u522b\uff0c
    1 \u8fdb\u884c\u4e86\u8fd0\u7b97\uff0c\u53d6\u8fd0\u7b97\u540e\u7684\u7ed3\u679c\uff0c\u4f60\u52a0\u4e86 1 \u79d2\u7684\u5ef6\u65f6\uff0c\u5f88\u660e\u663e\u5f53\u65f6\u7684 num \u7684\u503c\u4e3a 123\uff0c\u6240\u4ee5\u8f93\u51fa\u662f 123\uff0c\u5982\u679c\u53bb\u6389\u5ef6\u65f6\uff0c\u5219\u4e3a 789
    2 \u4e00\u76f4\u6307\u5411 num \u7684\u5730\u5740\uff0c\u4ece\u901a\u9053\u91cc\u8bfb\u7684\u65f6\u5019\u8bfb\u7684\u662f 789 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : bwangel <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    time.Sleep \u4e0d\u80fd\u4fdd\u8bc1 goroutine \u4e00\u5b9a\u6bd4 main \u5148\u6267\u884c\uff0c\u5982\u679c\u60f3\u8981\u8ba9 Goroutine \u6bd4 main \u5148\u6267\u884c\u7684\u8bdd\uff0c\u53ef\u4ee5\u901a\u8fc7 waitGroup \u6765\u540c\u6b65\uff1a<\/p>\n

    https:\/\/gist.github.com\/bwangelme\/5e71895d40130521b71828cef72adc1f