C语言处理JSON数据（仅供参考）

使用方法参考下面程序
#include<stdio.h>
#include "string.h"
// 根据键获取值 
char * getValueByKey(char *str, const char *key, char value[]) {
	char start = 0;
	char end = 0;

	while(str[start] != ':') {
		start++;
	} 
	end = start + 1;
	while(str[end] != ',' && str[end] != '}') {
		end++;
	}
	memcpy(value, &str[start+1], end - start - 1); 
}
void main() {
	// 处理JSON字符串
	char  _name[10];
	char  _identity[20];
	char  _amount[10];
	char *p;
	char data_buffer[200];  
	sprintf(data_buffer, "{\"name\":\"%s\",\"identity\":\"%s\",\"amount\":%d}", "Tom", "13433369803", 100); 
	printf("%s", data_buffer);
	if(strstr(data_buffer, "name") && strstr(data_buffer, "identity") && strstr(data_buffer, "amount")) {
		p = strstr(data_buffer, "name");
		getValueByKey(p, "name", _name);
		p = strstr(data_buffer, "identity");
		getValueByKey(p, "identity", _identity);
		p = strstr(data_buffer, "amount");
		getValueByKey(p, "amount", _amount);
	}
	printf("%s", _name);
	printf("%s", _identity);
	printf("%s", _amount);
}