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| function test_spot(count, str)
local result = ""
for i=0,count do
result = result..str
end
end
function test_table_concat(count, str)
local tbl = {}
for i=0,count do
table.insert(tbl, str)
end
table.concat(tbl)
end
print("单个字符串拼接多次")
local startTime = os.clock()
test_spot(10000, "123")
local endTime = os.clock()
print(string.format("spot use time => %.4f", endTime - startTime))
startTime = os.clock()
test_table_concat(10000, "123")
endTime = os.clock()
print(string.format("table_concat use time => %.4f", endTime - startTime))
function test_little_spot(count, str)
for i=0,count do
local tmp = str..str..str..str..str
end
end
function test_little_table_concat(count, str)
for i=0,count do
local tbl = {}
for i=0,5 do
table.insert(tbl, str)
end
table.concat(tbl)
end
end
print("小字符串拼接多次")
startTime = os.clock()
test_little_spot(10000, "123")
endTime = os.clock()
print(string.format("little_spot use time => %.4f", endTime - startTime))
startTime = os.clock()
test_little_table_concat(10000, "123")
endTime = os.clock()
print(string.format("little_table_concat use time => %.4f", endTime - startTime))
|
