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package main import "fmt" import "sync" import "time" var oc sync.Once var a int = 5; func main() { go func(){ oc.Do(func(){ a++ }) }() go func(){ oc. 阅读全文
posted @ 2022-10-16 00:40
AngDH
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posted @ 2022-10-14 18:08
AngDH
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posted @ 2022-10-14 18:06
AngDH
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//go:generate go env -w GO111MODULE=on //go:generate go env -w GOPROXY=https://goproxy.cn,direct //go:generate go mod tidy //go:generate go mod downlo 阅读全文
posted @ 2022-10-14 15:33
AngDH
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import linecache def get_line_count(filename): count = 0 with open(filename, 'r') as f: while True: buffer = f.read(1024 * 1) if not buffer: break cou 阅读全文
posted @ 2022-10-14 10:52
AngDH
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https://www.cnblogs.com/lutt/p/15969649.html def sqlalchemy_context(): def add_context(func): @wraps(func) def do_job(*args, **kwargs): # app.app_cont 阅读全文
posted @ 2022-10-11 15:57
AngDH
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posted @ 2022-10-11 12:45
AngDH
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https://blog.csdn.net/lzb348110175/article/details/114142229#indexhtml_13 阅读全文
posted @ 2022-10-11 12:00
AngDH
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查询大表 SELECT TABLE_NAME,TABLE_ROWS FROM information_schema.tables WHERE TABLE_SCHEMA = '库名' and TABLE_ROWS >500000 ORDER BY TABLE_ROWS desc 阅读全文
posted @ 2022-10-11 10:09
AngDH
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