#include <stdio.h>
#include <cuda_runtime.h>
#define THREADS_PER_BLOCK 16
__global__ void reduce1(int *g_idata, int *g_odata) {
extern __shared__ int sdata[];
// each thread loads one element from global to shared mem
unsigned int tid = threadIdx.x;
unsigned int i = blockIdx.x*blockDim.x + threadIdx.x;
sdata[tid] = g_idata[i];
__syncthreads();
// do reduction in shared mem
for(unsigned int s=1; s < blockDim.x; s *= 2)
{
if (tid % (2*s) == 0) sdata[tid] += sdata[tid + s];
__syncthreads();
}
// write result for this block to global mem
if (tid == 0) g_odata[blockIdx.x] = sdata[0];
}
int main()
{
int inputLength=16;
int hostInput[16]={10,1,8,-1,0,-2,3,5,-2,-3,2,7,0,11,0,2};
int hostOutput=0;
int *deviceInput;
int *deviceOutput;
cudaMalloc((void **)&deviceInput, inputLength * sizeof(int));
cudaMalloc((void **)&deviceOutput, sizeof(int));
cudaMemcpy(deviceInput, hostInput, inputLength * sizeof(int),cudaMemcpyHostToDevice);
reduce1<<<1,THREADS_PER_BLOCK>>>(deviceInput, deviceOutput);
cudaDeviceSynchronize();
cudaMemcpy(&hostOutput, deviceOutput,sizeof(int), cudaMemcpyDeviceToHost);
printf("%d\n",hostOutput);
cudaFree(deviceInput);
cudaFree(deviceOutput);
return 0;
}
组合框数据sqlite3保存为什么面板显示为什么它看起来不同bug? 我不知道为什么会这样。
答案 0 :(得分:0)
你错过了一个至关重要的步骤,获取数据本身 您正在使用游标对象而不是游标返回的数据。
def LoadList(self):
self.cursor.execute("SELECT *FROM CLINIC1")
data = self.cursor.fetchall()
for date1 in data: pass
self.staticText2_1 = wx.StaticText(self.panel, label=date1[1], style=wx.ALIGN_CENTER, pos=(100,100))
你是&#34;传递&#34;在您的for loop
中,您实际想要的只是一条记录,在这种情况下
data = self.cursor.fetchone()
并删除for loop
更好的是,阅读教程
https://www.blog.pythonlibrary.org/2012/07/18/python-a-simple-step-by-step-sqlite-tutorial/
在你的问题的标题中你提到了组合框,所以我假设你想用一个组合框替换statictext。以下内容应该让您开始,我将保留wx.EVT_COMBOBOX事件绑定供您添加,因为您在选择项目时需要它来执行某些操作。
import wx
import sqlite3
class Frame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None)
self.selected_data=[]
self.panel = wx.Panel(self)
self.combo = wx.ComboBox(self.panel,-1,choices=self.selected_data, size=(130,30))
self.conn = sqlite3.connect("test.db")
self.cursor = self.conn.cursor()
self.combo.SetValue("Choose an Item")
self.autoRefresh()
def autoRefresh(self):
self.LoadList()
def LoadList(self):
self.combo.Clear()
self.cursor.execute("SELECT * FROM CLINIC1")
data = self.cursor.fetchall()
for date1 in data:
self.selected_data.append(date1[1])
for i in self.selected_data:
self.combo.Append(i)
if __name__ == '__main__':
app = wx.App()
frame = Frame()
frame.Show()
app.MainLoop()