string str = 
"cspz,mkgl,lmgl,yhgl,sjgl,264,263,250,249,248,247,246,245,214,217,166,167,192,193,261,262,259,88,239,76,224,126,222,223,243,194,75,244";
如何得到结果:
cspz,mkgl,lmgl,yhgl,sjgl
264,263,250,249,248,247,246,245,214,217,166,167,192,193,261,262,259,88,239,76,224,126,222,223,243,194,75,244
将其分成两部分,(字符跟数字分开)