WhyCan Forum(哇酷开发者社区)

windows下提示：
Fatal error: Uncaught Error: Call to undefined function imagecreatetruecolor() i
n D:\Documents\Downloads\php-7.0.30-nts-Win32-VC14-x64\font_conv_core.php:299
Stack trace:
#0 D:\Documents\Downloads\php-7.0.30-nts-Win32-VC14-x64\font_conv_core.php(101):
height_corr()
#1 {main}
  thrown in D:\Documents\Downloads\php-7.0.30-nts-Win32-VC14-x64\font_conv_core.
php on line 299