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FILE *pFile = NULL;
char szBuf[128];
memset(szBuf, '\0', sizeof(szBuf));
int i = 0, nRead = 0, nWrite = 0;
memset(szBuf, '\0', sizeof(szBuf));
if((pFile = fopen("Test.txt", "r+t")) != NULL)
{
nRead = fread(szBuf, sizeof(char), sizeof(szBuf) - 1, pFile);
fclose(pFile);
szBuf[nRead] = '\0';
GetDlgItem(edit控件的ID)->SetWindowText(szBuf);
}